(37) باب أَمْرِ الأَئِمَّةِ بِتَخْفِيفِ الصَّلاَةِ فِي تَمَامٍ
Anas b. Malik reported the Messenger of Allah (ﷺ) having said:
When I begin the prayer I Intend to make it long, but I hear a boy cry. ing; I then shorten it because of his mother's feelings.
Reference: Sahih Muslim 470 b
In-book reference: Book 4, Hadith 218
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 952