He who buys food-rain should not sell it until he has taken possession of it. Ibn Abbas (Allah be pleased with them) said: I regard everything like food (so far as this principle is concerned).
Sahih Muslim Book 21, Hadith 38
← Previous Hadith A hadith like this has been narrated through the same chain of transmitters.

Sahih Muslim Book 21, Hadith 37 Next Hadith → He who buys foodgrain should not sell it, until he has weighed it (and then taken possession of it). I (Tawus) said to Ibn Abbas (Allah be pleased with them): Why is it so? Thereupon he said: Don't you see that they (the people) sell foodgrains against gold for the stipulated time. Abu Kuraib did not make any mention of the stipulated time.

Sahih Muslim Book 21, Hadith 39