The Messenger of Allah صلى الله عليه وسلم said: “The person who utters a word which meets with Allah’s favour may think it has not been heard, yet for this Allah will raise him to a higher level of Paradise. Conversely, the person who utters a word that stirs Allah to anger may give no thought to what he said, only to have Allah cast him in Hell for seventy years.”

At-Tirmidhi