It is narrated from Sayyiduna Abu Huraira, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: None of you should say to a slave: Give water to your lord, give food to your lord, make ablution for your lord. And no slave should say: My lord, rather he should say: My master and my patron. Similarly, no owner should say: My slave (male), my slave (female), rather he should say: My young man, my servant.