(33) And who is better in speech than one who invites to Allah and does righteousness and says, "Indeed, I am of the Muslims.
(14) O you who have believed, be supporters of Allah, as when Jesus, the son of Mary, said to the disciples, "Who are my supporters for Allah?" The disciples said, "We are supporters of Allah." And a faction of the Children of Israel believed and a faction disbelieved. So We supported those who believed against their enemy, and they became dominant.
The Messenger of Allah said on the Day of Khaybar: I will give this banner tomorrow to a man at whose hands Allah will grant victory. A man who loves Allah and his Messenger, and whom Allah and his Messenger love. So the people spent the night wondering who would it be given to. In the morning, people went to the Messenger of Allah, each hoping that he would be given it. The prophet (PBUH) said: Where is Ali ibin Abi Talib? People responded: O Messenger of Allah, there is something wrong with his eyes. So they sent for him, and he was brought. Then, the Messenger of Allah spat in his eyes and made a supplication for him, so he was healed, as if he had no ailment. So he gave him the banner. Ali said: O Messenger of Allah, shall I fight them until they become like us? So the prophet (PBUH) said: Advance patiently and calmly until you reach their territory, then call upon them to accept Islam and inform them about their duties according to Allah's rights in Islam. For by Allah, if Allah guides even one man through you is better for you than to have red -the most valuable- camels.
