Ada’ prayer is a prayer performed within its prescribed time limit—from its commencement to its expiration. Qadha’ prayer, on the other hand, is a prayer performed after this time has expired.
This distinction is not merely a technicality of execution. Behind it lie jurisprudential (fiqh) principles that determine whether a prayer is valid or not, whether a sin is incurred, and whether repeating the prayer is obligatory. The entirety of this article’s discussion is sourced from the book Asna al-Mathalib by Zakariyya al-Anshari, Volume 1, Chapter of Al-Mawaqit (The Book of Prayer, Shafi’i School).
Understanding Ada’ Prayer
Definition of Ada’ Linguistically and Terminologically
The word ada’ (أداء) linguistically means fulfilling something on time. In fiqh terminology, ada’ prayer is a prayer performed within the timeframe established by Islamic law (Sharia)—from the beginning of the time until its end limit.
Each of the five obligatory prayers has a distinct time limit. The entry and exit of this time determine whether a person’s prayer is counted as ada’ or not.
Time Limits as the Determinant of Ada’
Asna al-Mathalib explains that the commencement of the prayer time is the cause of the prayer’s obligation, while the expiration of the time causes the prayer to be fawat (missed). Therefore, as long as a person performs the prayer within the Sharia-prescribed time limits, their prayer is still counted as ada’, even if they complete it in the final moments of the allotted time.
This principle has one crucial exception, which will be discussed in the Idrak of Raka’at section below.
Understanding Qadha’ Prayer
Definition of Qadha’ and When a Prayer Becomes Qadha’
Qadha’ is the performance of a prayer after its prescribed time has ended. A prayer that could not be performed within the designated time—due to forgetfulness, oversleeping, or specific valid excuses (uzur)—must be performed as qadha’.
Asna al-Mathalib also outlines the provisions regarding ijtihad (personal reasoning) in determining prayer times: if someone prays based on ijtihad and it is later proven that their prayer fell after the time had ended, their prayer is counted as qadha’, not ada’. However, if it turns out it fell within the time, their prayer is valid as ada’. [1]
Evidence for the Obligation of Qadha’ from Hadith
The obligation of qadha’ for those who forget and oversleep is based on an agreed-upon (muttafaq ‘alaih) hadith:
«مَنْ نَسِيَ صَلاةً أَوْ نَامَ عَنْهَا فَكَفَّارَتُهَا أَنْ يُصَلِّيَهَا إِذَا ذَكَرَهَا»
“Whoever forgets a prayer or sleeps through it, its expiation is to perform it when he remembers it.”
Based on the text of Asna al-Mathalib, a person who is unaware of the obligation of prayer is analogized (qiyas) to the one who forgets and the one who oversleeps—thus, they are still obligated to make up (qadha’) their prayer. [2]
Fundamental Differences Between Ada’ and Qadha’
| Aspect | Ada’ | Qadha’ |
| Time of Execution | Within the prescribed Sharia time | After the time has expired |
| Ruling on Missing It | Sinful if intentionally delayed | Obligatory to make up (qadha’) immediately |
| Example | Dhuhr prayer at 12:30 PM | Dhuhr prayer performed at 4:00 PM |
Are the Intentions (Niyyah) for Ada’ and Qadha’ Different?
Yes, the intentions are different. An ada’ prayer is intended as a prayer performed within its time, whereas a qadha’ prayer is intended as a prayer performed to make up for a missed prayer. In the Shafi’i school, intention is a pillar (rukun) of prayer that must be strictly observed. A detailed discussion on intentions regarding rulings and a complete guide to obligatory prayers can be found in this pillar article.
Important Principle — Idrak (Catching) a Raka’at Within the Time Limit
One Raka’at Within the Time Limit, the Entire Prayer is Counted as Ada’
This is the most frequently asked principle. Asna al-Mathalib states firmly:
«وَلَوْ أَدْرَكَ فِي الْوَقْتِ رَكْعَةً لَا دُونَهَا فَالْكُلُّ أَدَاءٌ»
“If someone catches one raka’at within the time—and not less than that—then the whole (prayer) is ada’.”
The evidence for this principle is an agreed-upon (muttafaq ‘alaih) hadith:
«مَنْ أَدْرَكَ رَكْعَةً مِنَ الصَّلَاةِ فَقَدْ أَدْرَكَ الصَّلَاةَ»
“Whoever catches a raka’at of the prayer, he has indeed caught the prayer.” — meaning, as a performed prayer (mū’addāh / ada’). [3]
This applies, for instance, to the Asr prayer. If a person just starts and manages to complete one full raka’at before the sun sets, then their entire prayer—including the raka’ats performed after sunset—is counted as ada’, not qadha’.
Why One Raka’at, Not Less?
Asna al-Mathalib explains the reasoning clearly: one raka’at already encompasses the majority of the pillars (rukun) of the prayer. Meanwhile, the subsequent raka’ats are essentially a repetition (tikrar) of it.
Therefore, what is performed after the time has expired is considered to follow the first raka’at, which was still within the time. This is what differentiates the ruling of one full raka’at from anything less than it. [3]
If Less Than One Raka’at is Caught Within the Time Limit
What if a person only had time for the takbiratul ihram before the time expired, and then continued their prayer after the time had exited?
Asna al-Mathalib asserts: in this condition, their prayer becomes qadha’, not ada’. Anything less than one raka’at does not hold the same status as one full raka’at. [3]
This serves as a highly practical differentiator, especially for those praying Asr right as the sun is about to set.
Special Cases of Ada’ and Qadha’
A Person Who Sleeps or Forgets to Pray
Asna al-Mathalib distinguishes between two conditions:
- Unintentional sleep (overpowering sleep): If someone intended to pray but then fell asleep without realizing it, they are not sinful. This is because they had no control over their sleep.
- Intentional sleep while assuming the prayer will be missed: If they intended to sleep despite suspecting or doubting that the prayer would be missed, they are sinful for their negligence. [4]
However, in both circumstances, the missed prayer must still be made up (qadha’) without exception.
A Person Intoxicated Due to Something Haram
The loss of consciousness caused by something haram—such as alcohol (khamr) or similar substances—does not waive the obligation of prayer. Asna al-Mathalib explains:
«أَمَّا زَوَالُ الْعَقْلِ فَإِنْ كَانَ بِمُحَرَّمٍ كَخَمْرٍ وَحَشِيشَةٍ… فَلَا يُسْقِطُهَا»
“As for the loss of intellect, if it is caused by something haram such as khamr and cannabis… then it does not waive the (obligation of) prayer.”
Even if a person knows that the substance they consume can cause a loss of intellect, but they assumed the amount was too small to be harmful, they are still obligated to make up (qadha’) the missed prayers. [5]
An exception applies if they were completely unaware that the substance was prohibited, or if they were forced to consume it—in these conditions, the prayer obligation is waived.
A broader discussion regarding the rulings on the prayers of the insane, unconscious, and intoxicated is available in the related cluster articles.
A Child Who Reaches Puberty (Baligh) in the Middle of Prayer Time
Asna al-Mathalib establishes two conditions:
- The child prayed at the beginning of the time, then reached puberty before the time ended: Their prayer is considered valid, and they are not obliged to repeat it—this even applies to the Friday prayer. This is analogized with a slave who prayed with an uncovered head and was then freed within the prayer time.
- The child reaches puberty in the middle of the prayer: They are obliged to continue their prayer, and that prayer suffices their obligation as a legally responsible (mukallaf) adult—including for Friday prayers. [6]
Nevertheless, it is highly recommended (sunnah) for both to repeat the prayer so that it is performed in a more perfect state of legal obligation.
For a more in-depth discussion, see the article on a child reaching puberty in the middle of prayer time and the signs of puberty according to Islam.
The Disappearance of an Excuse (Menstruation, Insanity, Unconsciousness) at the End of the Time
This is a frequently confusing case. Asna al-Mathalib explains the provision:
«وَإِذَا زَالَتِ الْأَعْذَارُ الْمَانِعَةُ مِنْ وُجُوبِ الصَّلَاةِ وَقَدْ بَقِيَ مِنَ الْوَقْتِ قَدْرُ تَكْبِيرَةٍ فَأَكْثَرَ لَزِمَتِ الصَّلَاةُ»
“When the excuses preventing the obligation of prayer disappear, and there remains from the time the duration of one takbir or more, the prayer becomes obligatory.” [7]
Furthermore, if the remaining time is sufficient to purify oneself and perform two prayers that can be joined (jamak)—such as Dhuhr-Asr or Maghrib-Isha’—then both become obligatory. This is on the condition that the remaining time a person has is enough to perform both prayers in their lightest form.
For a discussion regarding menstruation starting during prayer time, a separate article is available that covers it in more detail.
The Ruling on Performing Part of the Prayer Outside Its Time
Is it a Sin if the Prayer Exceeds the Time Limit?
There are two scenarios that need to be distinguished:
- First scenario: A person performs the prayer negligently so that a part of their prayer falls outside the time—for instance, delaying without a valid reason. According to Asna al-Mathalib, they are sinful for taking a part of the prayer out of its time. However, if they still managed to catch one raka’at within the time limit, their prayer is still counted as ada’. [3]
- Second scenario: The prayer time is still ample, but they prolong their recitation or prayer movements until the time runs out—and they still manage to catch one raka’at within the time. In this condition, they are not sinful and their prayer is not disliked (makruh). However, this is still considered khilaf al-aula (contrary to what is best), as mentioned in al-Majmu’ and other books. [3]
The fundamental difference between these two scenarios lies in the presence or absence of negligence (taqshir) on the part of the person praying (mushalli).
FAQ: Questions Around Ada’ and Qadha’ Prayers
Does a qadha’ prayer have to be performed immediately after remembering?
Yes, based on the muttafaq ‘alaih hadith which is the primary evidence for qadha’, the prayer is performed “when he remembers it”—this indicates immediacy (fawran) after remembering. However, scholars of the Shafi’i school discuss the details of exceptional conditions.
Can a qadha’ prayer be performed during makruh (disliked) times?
Yes. Asna al-Mathalib asserts that prayers having a specific cause (sabab)—including qadha’—are not included in the prayers prohibited during disliked times. Even making up regular voluntary prayers (qadha’ nawafil) that are usually adopted as daily routines (wirid) is permissible. For a complete discussion on the 5 prohibited times for prayer in the Shafi’i school, see its explanation for deeper understanding.
Is there a mandatory order in performing qadha’ prayers?
The text of Asna al-Mathalib in this Mawaqit chapter does not explicitly discuss the order (tartib) of qadha’. The discussion regarding the tartib of qadha’ is found in a separate chapter in fiqh. For its exact legal ruling, please refer to the relevant fiqh books or trusted scholars.
Is a person who unintentionally oversleeps and misses a prayer sinful?
No. Asna al-Mathalib confirms: a person whose sleep overpowers them (ghalab al-nawm) is not sinful. However, they are still obligated to make up (qadha’) their prayer immediately after waking up and remembering.
Is a child who just reached puberty obliged to repeat the prayers they performed before puberty?
It is not obligatory, but recommended (sunnah). According to Asna al-Mathalib, prayers performed before puberty are already valid and do not need to be repeated. However, it is a sunnah to repeat them so that the prayer is performed in a state of full legal obligation.
Conclusion
The difference between ada’ and qadha’ boils down to one question: is the prayer performed within its designated time or not? The principle of catching (idrak) one raka’at within the time limit serves as a crucial boundary—one raka’at performed before the time expires makes the entire prayer count as ada’, while less than that renders it qadha’.
Understanding this principle is not just a matter of terminology, but involves the validity of the worship and the presence or absence of sin. For a subsequent discussion on the provisions of catching one raka’at before the time limit ends, a separate cluster article is available that delves deeper into it.
Footnotes
References
Zakariyā al-Anṣārī, Asnā al-Maṭālib fī Sharḥ Rawḍ al-Ṭālib, with marginalia (ḥāsyiyah) by Aḥmad al-Ramlī, edited by Muḥammad az-Zuhrī al-Ghamrāwī (Cairo: al-Maṭbaʿah al-Maymānīyah, 1313 AH; repr. Dār al-Kitāb al-Islāmī), Vol. 1, pp. 119-122.
