Abu Aziz ibn Umayr,
the brother of Musab. Abu Aziz related what happened: “I was among a group of Ansar…Whenever they had lunch or dinner they would give me bread and dates to eat in obedience to the Prophet’s instructions to th em to treat us well. “My brother, Musab ibn Umayr, passed by me and said to the man from the Ansar who was holding me prisoner: ‘Tie him firmly… His mother is a woman of great wealth and maybe she would ransom him for you.'” Abu Aziz could not believe his ears. Astonished, he turned to Musab and asked: “My brother, is this your instruction concerning me?” “He is my brother, not you,” replied Musab thus affirming that in the battle between iman and kufr, the bonds of faith were stronger than the ties of kinship.
At the Battle of Uhud, the Prophet called upon Musab, now well-known as Musab al-Khayr (the Good), to carry the Muslim standard. At the beginning of the battle, the Muslims seemed to be gaining the upper hand. A group of Muslims then went against the orders of the Prophet and deserted their positions. The mushrikin forces rallied again and launched a counterattack. Their main objective, as they cut through the Muslim forces, was to get to the noble Prophet. Musab realized the great danger facing the Prophet. He raised the standard high and shouted the takbir. With the standard in one hand and his sword in the other, he plunged into the Quraysh forces. The odds were against him. A Quraysh horseman moved in close and severed his right hand. Musab was heard to repeat the words: “Muhammad is only a Messenger. Messengers have passed away before him,” showing that however great his attachment was to the Prophet himself, his struggle above all was for the sake of God and for making His word