Who has complete Iman?

Prophet Muhammad (Peace and blessings of Allah be upon him) said "The most dependable handhold on faith is: love for the sake of Allah and hatred for the sake of Allah." [At-Tirmidhee]

Prophet Muhammad (Peace and blessings of Allah be upon him) said "Whoever loves for Allah, hates for Allah, gives for Allah, and withholds for Allah, has sought the completion of his faith." [Abu Dawood]