A Muslim is the brother of a Muslim. He neither oppresses him nor humiliates him nor looks down upon him. The piety is here, (and while saying so) he pointed towards his chest thrice. It is a serious evil for a Muslim that he should look down upon his brother Muslim. All things of a Muslim are inviolable for his brother in faith; his blood, his wealth and his honour. Sahih Muslim Book 31, Number 6219.
We have special responsibilities towards our brothers and sisters in Islam that we do not have towards the non-Muslim, and the rights of Allah come first, and the rights of Allah include the treatment we give to our brothers and sisters in Islam. We are to consider the Muslim, first and foremost, regardless of our relationships. The Muslim is sacred for us in his faith, his blood and his honour. The act of looking down upon a Muslim brother or sister is a serious sin in Islam. Think about this. How many times do we look down to the Muslim for his or her position in life?
