It was narrated that Ibn 'Abbas said:
"The Messenger of Allah (ﷺ) said: 'Whoever buys food, let him not sell it until he has taken full possession of it.'" (Sahih) In his narration, (one of the narrators) Abu 'Awanah said: "Ibn 'Abbas said: 'I think everything is like food."' (FR)
English reference (FR): Vol. 3, Book 12, Hadith 2227 (FR)
Arabic reference (FR): Book 12, Hadith 2312 (FR)