God says
… God has made buying and selling lawful and usury unlawful. … Q.2:275
… And have witnesses whenever you trade with one another, but neither scribe nor witnesses must suffer harm;* for if you do [them harm], behold, it will be sinful conduct on your part. And remain conscious of God, since it is God who teaches you [herewith]. And God has full knowledge of everything. – Q.2:282 (end of verse)
[There are] people whom neither commerce nor striving after gain can divert from the remembrance of God nor from constancy in prayer, and from charity: [people] who are filled with fear [at the thought of the Day on which all hearts and eyes will be convulsed, [and who only hope] that God may reward them in accordance with the best they ever did, and give them, out of His bounty more [than they deserve]: for God grants sustenance unto whom He wills beyond all reckoning. -- Q.24:37
Prophet said
“Take to trade because there are nine parts in it out of ten parts of sustenance” -- Ghazali’s “Ihya”.
“….every honest transaction (is purest)” – H: Ahmad. N: Rafe-b-khudaiji.
