سنن النسائي

It was narrated that Abu Sa'eed Al-Khudri said: "The Messenger of Allah (ﷺ) led us in Maghrib prayer, then he did not come out to us until half the night had passed. Then he came out and led them in prayer, then he said: 'The people have prayed and gone to sleep, but you are still in a state of prayer so long as you are waiting for the prayer. Were it not for the weakness of the weak and, the sickness of the sick, I would have commanded that this prayer be delayed until halfway through the night.'"