Amr ibn al-Hamq

Addressing to Amir ul-Mu'minin (a), Amr ibn al-Hamq said:
“By God I swear, Amir ul-Mu'minin, I have loved you and declared allegiance to you, not because of a family relationship that links me to you, or because of expecting a fortune that you would confer upon me, or because of expecting a leading authority that you would give to me. I have loved you for five traits: you are the cousin of the Messenger of God, the first man who believed in his mission, the husband of the mistress of the women of this umma; namely, Fatima the daughter of the Prophet (s), the s uccessor of the Prophet, the father of the Prophet’s progeny that remained among us, the foremost to Islam, and the best mujahid among Muhajirs. Even if I move the unshakable mountains and dry out the oceans so that I may achieve a matter that contribute s in strengthening one of your disciples or humiliating one of your enemies, I will not consider myself I have fulfilled my obligations towards you.”
Having listened to these words, Imam Ali (a) supplicated to God: “O Allah, illuminate his heart with piety and guide him to Your straight path. Had I had one hundred soldiers like you!” Bihar ul-Anwar; vol. 8 page 475 ) 

Reference :The Ahl Ul-Bayt Ethical Role-Models