Musannaf Ibn Abi Shayba 3:1697

Abu Bakr narrated to us, he said: Yazid ibn Harun narrated to us, he said: Humayd informed us, from Anas, who said: The Messenger of Allah (may Allah bless him and grant him peace) delayed the prayer one night until half of the night had passed. He said: So the people began to pray and then went to sleep. Then he came out while a group remained, and he prayed with them. When he finished the prayer, he turned with his face and said: "Indeed, the people have prayed and slept, and you have remained in prayer as long as you were waiting for the prayer." He said: It is as if I am looking at the glitter of his ring on his hand.