Let him speak good or remain silent
The Prophet ﷺ tied truthful, useful, non-injurious speech to faith itself, and warned that most of what humans are dragged into the Fire by is the harvest of their tongues.
In Islamic ethics, speech is not a neutral tool. It is one of the biggest determinants of a life — spiritually, socially, and in the Hereafter.
“Whoever believes in Allah and the Last Day, let him speak good or remain silent. Whoever believes in Allah and the Last Day, let him be generous to his neighbour. Whoever believes in Allah and the Last Day, let him honour his guest.”
Context: Narrated by Abu Hurayra. Also in Muslim (no. 47). Nawawi #15.
Source: Sahih al-Bukhari.
“Muʿādh said: I said, 'O Messenger of Allah, will we be held to account for what we say?' He said: 'May your mother be bereaved of you, Muʿādh! Is there anything that throws people into the Fire on their faces — or he said: on their noses — except the harvest of their tongues?'”
Context: Graded ḥasan ṣaḥīḥ by al-Tirmidhi.
Source: Jami' at-Tirmidhi.
“Do you know what ghībah is? They said: Allah and His Messenger know best. He said: Your mentioning your brother in a way he would dislike. It was said: What if what I said about my brother is true? He said: If what you said is true you have backbitten him; if it is not true you have slandered him.”
Context: Narrated by Abu Hurayra.
Source: Sahih Muslim.
The bar is not merely 'do not lie'. It is: if what you are about to say is not clearly good, be quiet. Ghībah — backbiting — is uniquely and rigorously defined: saying something true about someone that they would dislike is already sinful. Slander is worse. Both are treated as more spiritually damaging than most people realise, because the tongue moves faster than the conscience.
Nawawi (Riyāḍ al-Ṣāliḥīn) lists six situations in which naming something a person would dislike is allowed: seeking judicial redress against wrong, seeking a religious ruling, warning someone about a genuine harm (a business partner, a suitor), warning against a public sinner whose harm is spreading, identifying someone by a known descriptor (e.g. 'the tall one') where no other identifier works, and naming an open sinner in their public act. Outside these, silence.
For three days, before speaking about a person who is not present, ask: is this true, is this useful, is this kind? If two of those are 'no', keep it in. Watch how much you say — and how the quality of your relationships shifts.
The Prophet ﷺ said most of what drags people into the Fire is the harvest of their tongues. If your last week's speech were harvested, what would come up?
