It was narrated that 'Aishah said: "The Messenger of Allah did not sleep before the 'Isha' nor stay up (talking) after it"
SahihSahihIsnaad SahihBook 2 · Hadith 36
سنن ابن ماجه
It was narrated that 'Aishah said: "The Messenger of Allah did not sleep before the 'Isha' nor stay up (talking) after it"