It was narrated that Abu Dharr said: "We fasted Ramadan with the Messenger of Allah P.B.U.H and he did not lead us in praying Qiyaam (prayers at night) during any part of it, until there were seven nights left.' He led us in praying Qiyaam on the seventh night until approximately one third of the night had passed, Then on the sixth night which followed it he did not lead us in prayer, Then he led us in praying Qiyaam on the fifth night which followed it until almost half the night had passed, I said: '0 Messenger of Allah, would that we had offered voluntary prayers throughout the whole night: He said. 'Whoever stands with the Imam until he finishes, it is equivalent to spending the whole night in prayer: Then on the fourth night which followed it, he did not lead us in prayer, until the third night that followed it, when he gathered his wives and family, and the people gathered, and he led us in prayer until we feared that we would miss the Falaah," It was asked: "What is the Falaah?" He said: "Suhur." He said: "Then he did not lead us in prayer at night for the rest of the month." (Sahih)