Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, a servant utters a word that pleases Allah, and he gives it no importance, but because of it Allah raises him in degrees. And a servant utters a word that angers Allah, and he gives it no importance, but because of it he falls into Hell." These are the words of Bukhari. And in the narration of Bukhari and Muslim: "Because of it, he falls into Hell as deep as the distance between the east and the west." __QUR_N__, __XREF_N__, __REF_N__