Abu Hurairah · Prayer at Night (Tahajjud)

Allah's Messenger (ﷺ) said, "Satan puts three knots at the back of the head of any of you if he is asleep. On every knot he reads and exhales the following words, 'The night is long, so stay asleep.' When one wakes up and remembers Allah, one knot is undone; and when one performs ablution, the second knot is undone, and when one prays the third knot is undone and one gets up energetic with a good heart in the…

Allah's Messenger (ﷺ) (p.b.u.h) said, "Our Lord, the Blessed, the Superior, comes every night down on the nearest Heaven to us when the last third of the night remains, saying: "Is there anyone to invoke Me, so that I may respond to invocation? Is there anyone to ask Me, so that I may grant him his request? Is there anyone seeking My forgiveness, so that I may forgive him?"

At the time of the Fajr prayer the Prophet (ﷺ) asked Bilal, "Tell me of the best deed you did after embracing Islam, for I heard your footsteps in front of me in Paradise." Bilal replied, "I did not do anything worth mentioning except that whenever I performed ablution during the day or night, I prayed after that ablution as much as was written for me."

That once Allah's Messenger (ﷺ) (p.b.u.h) said, "Your brother, i.e. `Abdullah bin Rawaha does not say obscene (referring to his verses): Amongst us is Allah's Messenger (ﷺ), who recites His Book when it dawns. He showed us the guidance, after we were blind. We believe that whatever he says will come true. And he spends his nights in such a way as his sides do not touch his bed. While the pagans were deeply asleep."

My friend (the Prophet) advised me to do three things and I shall not leave them till I die, these are: To fast three days every month, to offer the Duha prayer, and to offer witr before sleeping.