Abu Al-Ajlan Muharibi (may Allah have mercy on him) says: I was in the army of Sayyiduna Abdullah bin Zubair (may Allah be pleased with them both) when one of my paternal cousins passed away, and he had a camel about which he made a bequest that it should be given in the way of Allah. I said to his son: Give me that camel because I am in the army of Sayyiduna Ibn Zubair (may Allah be pleased with them both). He said: Take us to Sayyiduna Ibn Umar (may Allah be pleased with them both) so that we may ask about the matter. We went to Sayyiduna Ibn Umar (may Allah be pleased with them both) and he said: O Abu Abdur Rahman! My father has passed away and has dedicated a camel in the way of Allah, and this is my cousin who is in the army of Sayyiduna Ibn Zubair (may Allah be pleased with them both). Can I give this camel to him? Sayyiduna Ibn Umar (may Allah be pleased with them both) said: O son! Indeed, every righteous deed is in the way of Allah. If your father made a bequest to give this camel only in the way of Allah, then when you see that a group of Muslims is fighting against the polytheists, give them that camel. As for this man and his companions, they are fighting on the path of their sons, each of whom wants his own command to prevail.

It is narrated from Sayyiduna Jarir (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "Whoever does not show mercy to people, Allah the Exalted does not show mercy to him."

It is narrated from Sayyiduna Umar (may Allah be pleased with him), he said: Whoever does not show mercy will not be shown mercy, and whoever does not forgive will not be forgiven, and whoever does not pardon others will not be pardoned, and whoever does not strive to avoid sin will not be protected from sin.