"The Messenger of Allah said: 'Whoever buys food, let him not sell it until he has taken possession of it."'
Sunan an-Nasa'i Book 44, Hadith 147
← Previous Hadith "The Messenger of Allah said: "Volume is to be measured according to the system of the people of Al-Madinah, and weight is to be measured according to the system of the peole of Makkah."' (Sahih) This is the wording of Ishaq (one of the narrators).

Sunan an-Nasa'i Book 44, Hadith 146 Next Hadith → "Whoever buys food let him not sell it until he has taken possession of it."

Sunan an-Nasa'i Book 44, Hadith 148