Mukhtasar Bukhari (Abridged) 1147 — Dislike of abusing a slave

Narrated Abu Huraira (may Allah be pleased with him) from the Prophet (peace and blessings of Allah be upon him) that he said: "None of you should say (to his slave or slave-girl), 'Feed your lord (master), give water to your lord (master), make wudu for your lord (master),' but rather he should say, 'Feed your chief, give water to your chief, make wudu for your chief,' and none of you should say, 'My slave, my slave-girl,' but rather he should say, 'My servant, my maid, and my boy.'"