(8) باب وَقْتِ صَلاَةِ الْعِشَاءِ
Humaid said:
"Anas bin Malik was asked: 'Did the Prophet wear a ring?' He said: 'Yes.' One night he delayed the 'Isha' prayer until almost the middle of the night. When he had prayed, he turned to face us and said: 'The people have prayed and gone to sleep, but you will still be in a state of prayer so long as you are waiting for the (next) prayer.'" (Sahih)Anas said: "It was as if I can see the sparkle from his ring.'"
Reference: Sunan Ibn Majah 692
In-book reference: Book 2, Hadith 26
English translation: Vol. 1, Book 2, Hadith 692