Musnad Ahmad 27:48

Isma'il narrated to us, Ayyub informed us, from Nafi', from Ibn 'Umar, that the Prophet (peace and blessings of Allah be upon him) said: "Each of you is a shepherd, and each of you is responsible. The leader who is over the people is a shepherd, and he is responsible for his subjects. The man is a shepherd over the people of his household, and he is responsible. The woman is a shepherd over her husband's house, and she is responsible. The slave is a shepherd over his master's wealth, and he is responsible. Verily, each of you is a shepherd, and each of you is responsible."