It is narrated from Sayyiduna Mughirah bin Shu’bah (may Allah be pleased with him), he says that the Messenger of Allah (peace and blessings be upon him) performed prayer until his blessed feet became swollen. It was said to him,“Do you endure so much hardship even though all your past and future mistakes have been forgiven for you (you are free from sins)?”He (peace and blessings be upon him) replied:“Should I not be a grateful servant?”

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he says that the Messenger of Allah (peace and blessings be upon him) used to pray so much that both of his blessed feet would become swollen. So it was said to him, "Do you do this (with such hardship) when you have already been given the glad tidings that Allah Almighty has forgiven your past and future sins?" The Prophet (peace and blessings be upon him) replied: "Should I not then be a grateful servant (of Allah Almighty)?"

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that he said: The Messenger of Allah, peace and blessings be upon him, would stand in prayer for such a long time that both of his blessed feet would swell. So it was said to him: You do this (with such hardship) even though Allah Almighty has forgiven all your past and future sins? The Prophet, peace and blessings be upon him, replied:“Should I not be a grateful servant?”

It is narrated from Aswad bin Yazid, he says: I asked Umm al-Mu'mineen Sayyida Aisha Siddiqa (may Allah be pleased with her) about the night worship of the Messenger of Allah (peace and blessings be upon him), so she said: The Messenger of Allah (peace and blessings be upon him) used to sleep in the early part of the night. Then he would get up and stand (in prayer) and take suhoor, and near the time of suhoor he would perform witr, then he would return to his bed, and if there was a need, he would go to his family, then when he heard the (morning) adhan, he would get up quickly, and if he was in a state of janabah, he would pour water over his body, otherwise he would perform wudu and go for prayer.

Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that he spent a night at the house of Umm al-Mu’minin Sayyida Maymunah (may Allah be pleased with her), and she was his maternal aunt. He says: I lay down across the bed, and the Messenger of Allah (peace and blessings be upon him) lay down lengthwise. The Messenger of Allah (peace and blessings be upon him) slept until, when half the night had passed, or a little before it or a little after it, the Messenger of Allah (peace and blessings be upon him) woke up and began to wipe away sleep from his face, and recited the last ten verses of Surah Al-Imran. Then he got up and went to a hanging water-skin and performed ablution from it thoroughly. Then he stood and began to pray. Abdullah ibn Abbas (may Allah be pleased with them both) says: I stood on his left side, so the Messenger of Allah (peace and blessings be upon him) placed his blessed right hand on my head, then took hold of my right ear and twisted it. The Messenger of Allah (peace and blessings be upon him) prayed two rak‘ahs, then two rak‘ahs, then two rak‘ahs, then two rak‘ahs, then two rak‘ahs, then two rak‘ahs. The narrator Ma‘n says: He prayed two rak‘ahs six times, then prayed Witr. Then the Messenger of Allah (peace and blessings be upon him) lay down until the mu’adhdhin came. Then the Messenger of Allah (peace and blessings be upon him) stood and prayed two light rak‘ahs, then went out (to the mosque) and led the Fajr prayer.

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both), he says that the Noble Prophet (peace and blessings be upon him) used to pray thirteen (13) rak‘ahs at night.

It is narrated from Umm al-Mu'minin Sayyida Aisha (may Allah be pleased with her) that whenever the Prophet Muhammad (peace and blessings be upon him) was unable to perform prayer at night, either because sleep prevented him or sleep overcame his eyes, he would perform twelve rak'ahs during the day.

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that he narrates from the Noble Prophet, peace and blessings be upon him, that he, peace and blessings be upon him, said: "When any one of you stands for prayer at night, let him begin with two light rak‘ahs."

Sayyiduna Zayd bin Khalid al-Juhani, may Allah be pleased with him, says: I resolved in my heart that tonight I will definitely observe the prayer of the Messenger of Allah, peace and blessings be upon him, so I leaned against his doorstep or tent. Then the Messenger of Allah, peace and blessings be upon him, stood and performed two light rak‘ahs, then two long rak‘ahs, then two rak‘ahs shorter than those, then two rak‘ahs shorter than those, then two rak‘ahs shorter than those, then two rak‘ahs shorter than those, then he performed Witr, making a total of thirteen rak‘ahs.

Saeed bin Abi Sa'di Maqbari narrates from Abu Salamah bin Abdur Rahman, who reported that he asked Umm al-Mu'mineen, Lady Aisha (may Allah be pleased with her), about the manner of the Prophet's (peace and blessings be upon him) (night) prayer in Ramadan. She replied: The Messenger of Allah (peace and blessings be upon him) would not pray more than eleven rak'ahs in Ramadan or outside of Ramadan. He (peace and blessings be upon him) would pray four rak'ahs, and do not ask about their beauty and length (i.e., he performed them in a very good manner and with lengthy recitation), then he would pray three rak'ahs (witr). Umm al-Mu'mineen, Lady Aisha (may Allah be pleased with her), said: I asked: O Messenger of Allah! Do you sleep before praying witr? He (peace and blessings be upon him) replied: "O Aisha! My eyes sleep but my heart does not sleep."