Mukhtasar Muslim

Narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: There are three things, whoever has them will taste the sweetness and delight of faith: First, that he loves Allah and His Messenger more than anyone else; second, that he loves a person only for the sake of Allah (i.e., with no worldly motive or fear); third, that he hates to return to disbelief after Allah has saved him from it, just as he would hate to be thrown into the fire.