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 : Book 9, Hadith 43 USC-MSA web (English) : Vol. 1, Book 10, Hadith 541 (deprecated)
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