It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) once delayed the ‘Isha prayer one night, until the people fell asleep, then woke up, then fell asleep again, then woke up again. Finally, Sayyiduna Umar bin Khattab (may Allah be pleased with him) came and said: O Messenger of Allah! Lead the prayer. Then the Prophet (peace and blessings be upon him) came and led the people in prayer. The narrator did not mention anything about him performing ablution.

Sayyiduna Anas bin Malik (RA) narrates that the iqamah for the ‘Isha prayer was pronounced or one night the ‘Isha prayer was delayed, then a man stood up and said: O Messenger of Allah! I have some work with you. So the Prophet (peace and blessings be upon him) began to whisper with him until the people started to fall asleep, then the Prophet (peace and blessings be upon him) led the prayer and no mention of ablution was made.

It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the noble Companions used to sleep and then would not perform a new ablution.

It is narrated from Sayyiduna Ali (may Allah be pleased with him), he says: I was a person who used to sleep a lot, so when I would offer Maghrib and my clothes were on me, I would fall asleep. Then once Yahya bin Saeed, while quoting Ali (may Allah be pleased with him), said: So I used to sleep before Isha. When I asked the Messenger of Allah (peace and blessings be upon him) about this, he (peace and blessings be upon him) granted me permission.

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) slept in such a way that he began to breathe audibly, then when he got up, he performed prayer and did not perform ablution.

Sayyida Aisha (may Allah be pleased with her) narrated a similar hadith from the Prophet Muhammad (peace and blessings be upon him).

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him), he says: I spent the night at the house of my maternal aunt, Sayyida Maymunah (may Allah be pleased with her). The Noble Prophet (peace and blessings be upon him) woke up during the night, performed a light ablution, and began to pray. Sayyiduna Ibn Abbas (may Allah be pleased with him) also did as the Prophet (peace and blessings be upon him) did, and then came and stood (on the left side of the Prophet, peace and blessings be upon him) to pray. The Prophet (peace and blessings be upon him) turned him and made him stand on his right side. Then he continued to pray with the Prophet (peace and blessings be upon him). After finishing, the Prophet (peace and blessings be upon him) lay down until he began to snore. Then the muezzin came to the Prophet (peace and blessings be upon him) (and informed him of the Fajr prayer), so the Prophet (peace and blessings be upon him) went for the prayer and did not perform ablution again. In another narration, Sayyiduna Ibn Abbas (may Allah be pleased with him) said: When the Prophet (peace and blessings be upon him) had performed the two Sunnah rak‘ahs of Fajr, he lay down and began to snore. So we used to say to ‘Amr that the Messenger of Allah (peace and blessings be upon him) had said: My eyes sleep but my heart does not sleep.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) used to sleep in such a way that the sound of his snoring could be heard, then he would stand up and perform prayer without performing ablution. Ikrimah said: The Noble Prophet (peace and blessings be upon him) was protected.

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever falls asleep in the state of prostration, there is no ablution upon him; ablution is required for the one who sleeps lying down, because when a servant sleeps lying down, his joints become loose and relaxed.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him and his family) said: Surely, the eye is a strap for the anus, so whoever sleeps should perform ablution.