The Messenger of Allah (ﷺ) sent us in a detachment and said (to us): If you see a mosque or hear a mu'adhdhin (calling to prayer), do not kill anyone.
Sunan Abi Dawud Book 15, Hadith 159
← Previous Hadith Anas said “The Prophet (ﷺ) used to attack at the time of the dawn prayer and hear. If he heard a call to prayer, he would refrain from them, otherwise would attack (them).

Sunan Abi Dawud Book 15, Hadith 158 Next Hadith → Jabir reported the Apostle of Allaah(ﷺ) as saying “War is deception.”

Sunan Abi Dawud Book 15, Hadith 160