And the Messenger of Allah, peace and blessings be upon him, said: "None of you should say: 'Give drink to your "Rabb" (lord/master), feed your "Rabb", or give ablution to your "Rabb",' and no one should call (his master) 'my Rabb', but rather he should call (his master) 'Sayyidi wa Mawlaya'—my chief, my master. It is not proper for anyone to say 'Abdi'—my slave, or 'Amati'—my female slave, rather he should say: 'Ghulami'—my servant, my maidservant, my slave."