Abu Dawud

Narrated As-Saburah: The Prophet ﷺ said: Command a boy to pray when he reaches the age of seven years. When he becomes ten years old, then beat him for prayer.

Narrated Abdullah ibn Amr ibn al-As: The Messenger of Allah ﷺ said: Command your children to pray when they become seven years old, and beat them for it (prayer) when they become ten years old; and arrange their beds (to sleep) separately.

This tradition has been narrated by Dawud bin Sawar al-Muzani through a different chain of transmitters and to the same effect. This version adds; if any of you marries his slave-girl to his male-slave or his servant, he should not look at her private part below her navel and above her knees. Abu Dawud said: Waki misunderstood the name of Dawud bin Sawar. Abu Dawud al-Tayalisi has narrated this tradition from him. He said: Anu Hamzah Sawar al-Sairafi.

Narrated Muadh ibn Abdullah ibn Khubayb al-Juhani: Hisham ibn Saad reported: We entered upon Muadh ibn Abdullah ibn Khubayb al-Juhani. He said to his wife: When (at what age) should a boy pray? She replied: Some person of us reported: The Messenger of Allah ﷺ was asked about it; he said: When a boy distinguishes right hand from the left hand, then command him to pray.