(22) باب فَضْلِ الْعِشَاءِ
Narrated `Aisha:
Allah's Messenger (ﷺ) once delayed the `Isha' prayer and that was during the days when Islam still had not spread. The Prophet (ﷺ) did not come out till `Umar informed him that the women and children had slept. Then he came out and said to the people of the mosque: "None amongst the dwellers of the earth has been waiting for it (`Isha prayer) except you."
Reference: Sahih al-Bukhari 566
In-book reference: Book 9, Hadith 43
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 10, Hadith 541