Musannaf Ibn Abi Shaybah

Hasan and Hazrat Ata say regarding the slave who is freed at the time when people have departed from Arafat, or it is said that if a boy reaches puberty (becomes mature) or a girl begins menstruating, then all of them will return to Arafat and stay there until morning. Their staying there will suffice for them in the morning, and their Hajj will be considered fulfilled, which was obligatory upon them as the Hajj of Islam.