when the Messenger of Allah (ﷺ) sent him to Makkah, he forbade him from profiting off of what he did not possess.
Sunan Ibn Majah Book 12, Hadith 53
← Previous Hadith "The Messenger of Allah (ﷺ) said: 'It is not permissible to sell something that is not with you, nor to profit from what you do not possess."'

Sunan Ibn Majah Book 12, Hadith 52 Next Hadith → "Any man who sells to two men, it is for the one who was first."

Sunan Ibn Majah Book 12, Hadith 54