'Do not say "may Allah mar your face”.’ (Saheeh al-Adab) *One should not hit anyone on their face, for the Prophet () said:
'If one of you hits his servant, let him avoid hitting him in the face.' (Saheeh al-Adab) *Imam al-Bukhari, may Allah have mercy on him, said in his book ‘al-Adab al-Mufrad’: 'Chapter: Give them (i.e. servants) to wear from what you wear.' Jabir b. Abdullah () said: 'The Prophet () told us to treat the slaves kindly. He said:
'Give them to eat from what you eat. Give them to wear from what you wear and do not torture the creatures of Allah, the Exalted.' (Saheeh al-Adab)