The Prophet (peace be upon him) said, "None of you will have faith till he loves me more than his father, his children and all mankind." (Bukhaari)
The Prophet (peace be upon him) said, "Whoever possesses the following three qualities will have the sweetness (delight) of faith:
1. The one to whom Allaah and His Apostle becomes dearer than anything else.
2. Who loves a person and he loves him only for Allaah's sake.
3. Who hates to revert to Atheism (disbelief) as he hates to be thrown into the fire." (Bukhaari)