It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that once an Ansari man said something which expressed anger towards the Prophet (peace and blessings of Allah be upon him). My heart did not agree to inform the Prophet (peace and blessings of Allah be upon him) about it. I wish I could offer my family and all my wealth as ransom in exchange for this matter. The Prophet (peace and blessings of Allah be upon him) said: "May Allah's mercy descend upon Musa; he was troubled even more than this, but he remained patient." Then he said: "A prophet was denied by his people and was wounded because he brought Allah's commands. He was wiping blood from his face and kept saying, 'O Lord! Forgive my people, for they do not know me.'" (This is a reference to the incident of Ta'if)