The Prophet's ﷺ Guidance in Business and Trade

The chapter on the Prophet's ﷺ guidance in business, commerce, and financial transactions in Zad al-Ma'ad demonstrates that the prophetic example extends into every domain of worldly life, not merely the acts of explicit worship. Islam does not create a sharp division between the 'religious' and the 'worldly' — the entire field of muamalat (transactions) is governed by Shariah principles, and the Prophet's ﷺ own practice as a merchant and trader before prophethood, and as the judge and legislator of commercial disputes during the Madinan period, provides the foundational template.

Before his prophethood, Muhammad ﷺ was himself a merchant — he worked in trade for Khadijah bint Khuwaylid, whose trust in his commercial honesty and integrity inspired her proposal of marriage. His reputation as 'al-Amin' (the Trustworthy) was earned in the marketplace as much as in any other arena. This biographical reality gives particular weight to the Prophet's ﷺ teachings on commercial ethics: they come from a man who understood trade from personal experience.

Ibn al-Qayyim documents the key prophetic principles governing Islamic commerce. The most foundational is the prohibition of riba (usury/interest) — condemned in the most severe terms in the Quran: 'O you who believe, fear Allah and give up what remains of riba, if you are believers' (Quran 2:278). The Prophet ﷺ elaborated the types of riba beyond what the Quran specified, identifying two categories: riba al-nasi'ah (interest arising from deferral of payment) and riba al-fadl (interest arising from unequal exchange of the same commodities).

The prohibition of gharar (excessive uncertainty) is a second major principle: contracts that contain a fundamental uncertainty about the subject matter, the price, or the delivery that could lead to dispute are invalid under Islamic commercial law. This principle underlies the prohibition of futures contracts in their classical form, the prohibition of selling what one does not yet possess (with some exceptions), and the prohibition of gambling.

The Prophet ﷺ also emphasized that in trade, truth is the foundation: 'The seller and buyer have the option (to cancel) as long as they have not parted. If both are honest and disclose any defects, their transaction will be blessed; if they lie and conceal defects, the blessing of their transaction will be stripped away.' (Al-Bukhari and Muslim.) This hadith establishes disclosure (bayan) of known defects as an obligation in Islamic commercial law — concealing a known defect in goods being sold is a form of fraud that vitiates the blessing of the transaction and exposes the seller to legal liability.

Ibn al-Qayyim also addresses the Prophet's ﷺ practice regarding prices and markets. The Prophet ﷺ refused to fix prices when the Companions asked him to — 'The Fixer of prices is Allah; it is He who restricts and expands, and I hope to meet my Lord without any of you having a claim against me regarding blood or property.' (Abu Dawud, al-Tirmidhi.) This hadith has been taken by some scholars as a general prohibition on price controls, while others view it as a contextually specific response to a situation where prices were rising due to natural market forces rather than manipulation. The underlying principle — that the marketplace should function in accordance with honest supply and demand, without manipulation — is clear.