Sunan Abi Dawud — Jihad (Kitab Al-Jihad)

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).

That she asked the Messenger of Allah (ﷺ) about the ‘Aqiqah. He said: “For the boy is two sheep, and for the girl is one, it will not harm you if they (i.e. the sheep) are male or female.”