Honesty in business and trade
Islamic Studies · Key Stage 3 · The School
Full measure, honest weight
Surah Al-Mutaffifin opens with a direct warning to those who demand full measure when they buy but give less when they sell (83:1-3). It is named after the people the verse condemns — "those who give less". Honest weighing is treated as a religious duty, not a business courtesy.
Al-Amin
Before any revelation came to him, Muhammad ﷺ was known across Makkah as AL-AMIN, the trustworthy. That reputation was built specifically through years of honest trading and safekeeping people's property — it is a large part of why the merchant Khadijah hired him to run her trade caravan, and later proposed marriage.
What dishonesty in trade covers
Hiding a known defect in what you sell. Describing goods falsely. IHTIKAR — deliberately hoarding goods during a shortage to drive the price up — is named and prohibited specifically, because it profits from other people's need rather than meeting it. Each is a specific, named wrong, not a vague general caution.
A seller knows their car has a fault the buyer has not noticed. Full measure and honest weighing (83:1-3) apply here as much as to a market stall. Recall the doubtful-middle teaching from halal-haram-and-daily-choices: this case is not doubtful at all — a known defect not disclosed is a described wrong, not a grey area, whatever the local custom of "let the buyer beware" might suggest.