Musnad Ahmad 27:190

Isma'il narrated to us, from Yunus, from al-Hasan, from Ibn 'Umar, that the Prophet, peace and blessings of Allah be upon him, said: "Allah, Blessed and Exalted is He, does not entrust a servant with a flock—whether few or many—but that Allah, Blessed and Exalted is He, will ask him about them on the Day of Resurrection: Did he uphold the command of Allah, Blessed and Exalted is He, among them, or did he neglect it? Until He asks him about the members of his own household specifically."