2:256 Let there be no compulsion in religion. Truth stands out clear from error; whoever rejects evil and believes in Allah hath grasped the most trustworthy hand-hold that never breaks. And Allah heareth and knoweth all things.
The ones most disliked and stated furthest from me [i.e. The Prophet] on the day or resurrection will be the ones who are boastful and big-mouthed and speak unnecessarily. (Tirmizi)