(10) باب ذِكْرِ الاِخْتِلاَفِ عَلَى عَبْدِ اللَّهِ بْنِ دِينَارٍ فِي لَفْظِ هَذَا الْحَدِيثِ
It was narrated from Sufyan, from 'Amr bin Dinar, 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 concluded the transaction.
Reference: Sunan an-Nasa'i 4477
In-book reference: Book 44, Hadith 29
English translation: Vol. 5, Book 44, Hadith 4482