Ibn 'Umar reported that the Messenger of Allah, may Allah bless
him and grant him peace, said, "All of you are shepherds and each of you
is responsible for his flock. The amir of a people is a shepherd and he
is responsible for his flock. A man is the shepherd of the people of his
house and he is responsible for his flock. A man's slave is the shepherd
of his master's property and he is responsible for it. Each of you is a
shepherd and each of you is responsible for his flock."
Abu Hurayra reported that the Messenger of Allah, may Allah bless
him and grant him peace, said, "When the Muslim slave performs the due
of Allah and the due of his master, he will have two rewards."
Abu Burda reported from his father that the Messenger of Allah,
may Allah bless him and grant him peace, said, "The slave has two rewards
when he carries out Allah's due in worship (or he said that he is excellent
in his worship) and the right of his owner who owns him."