(2) باب
Narrated Ibn 'Asim Al-Muzani:
From his father and he was a Companion who said: "When the Messenger of Allah (ﷺ) dispatched any army or battalion, he would say to them: 'If you see a Masjid, or hear someone calling the Adhan, then do not kill anyone.'" (FR)
Reference (FR): Jami` at-Tirmidhi 1549 (FR)
In-book reference (FR): Book 21, Hadith 2 (FR)
English translation (FR): Vol. 3, Book 19, Hadith 1549 (FR)