Musnad Ahmad 27:1442

Mu'ammal ibn Isma'il narrated to us, Sufyan narrated to us, from 'Abdullah ibn Dinar, I heard Ibn 'Umar saying: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Each of you is a shepherd, and each of you is responsible for his flock. The leader is a shepherd over his subjects and is responsible for them. The man is a shepherd over his household and is responsible for them. The slave is a shepherd over the wealth of his master and is responsible for it. The woman is a shepherd over the house of her husband and is responsible for it."