Volume 6, Book 60, Number 73:
Narrated ‘Abdullah bin Abu Aufa:
A man displayed some merchandise in the market and took an oath that he had been offered a
certain price for it while in fact he had not, in order to cheat a man from the Muslims. So then was
revealed:–“Verily! Those who purchase a small gain at the cost of Allah’s Covenant and their
oaths…”(3.77)