Sunan an-Nasa'i · Hadith 4479

أخبرنا عمرو بن يزيد، عن بهز بن أسد، قال حدثنا شعبة، قال حدثنا عبد الله بن دينار، عن ابن عمر، قال قال رسول الله صلى الله عليه وسلم ‏"‏ كل بيعين فلا بيع بينهما حتى يتفرقا إلا بيع الخيار ‏"‏ ‏.‏

It was narrated from Shu'ban who said: "Abdullah bin Dinr narrated to us, from Ibn'Umar, who said; The Messenger of Allah said; "When two people meet to engage in trade, the transaction between them is not binding until they separate, unless they have chosen to conclude the transaction."

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).