It is narrated from Sayyiduna Abu Salih (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "O people! I have come as an embodiment of mercy, which is a gift (for the people of the worlds)."
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that it was said: O Messenger of Allah! Pray against the polytheists. He (peace and blessings be upon him) said: "I was not sent as one who curses, but rather as a mercy."