Narrated Anas r.a: The Prophet pbuh said.”Whoever possesses the following three (qualities) will have the sweetness (delight) of faith:
1)The one to whom Allah and His messenger Muhammad pbuh become dearer than anything else.
2)Who loves a person and he loves him only for Allah’s sake.
3)Who hates to revert to kufr (disbelief) as he hates to be thrown into the fire.”
(sahih Al-Bukhari, vol.1, hadith no 15)