Sahih Bukhari Volume 2, Book 26, Hadith Number 694.

Narated By Urwa : From ‘Aisha: Some people performed Tawaf (of the Kaba) after the morning prayer and then sat to listen to a preacher till sunrise, and then they stood up for the prayer. Then ‘Aisha commented, “Those people kept on sitting till it was the time in which the prayer is disliked and after that they stood up for the prayer.”