مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2426
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said: The Prophet (ﷺ) said: “Whoever buys foodstuff should not sell it until he receives it in full.” Ibn 'Abbas said: I think everything is like foodstuff.
Musnad Ahmad 2438lts isnad is saheeh, al-Bukhari (2135) and Muslim (1525)]