(9) باب ذِكْرِ الاِخْتِلاَفِ عَلَى نَافِعٍ فِي لَفْظِ حَدِيثِهِ
It was a narrated from Ayyub, from Nafi from Ibn 'Umar that the Messenger of Allah said:
"The Messenger of Allah said: "The two parties to a transaction both have the choice who long as they have not separated or one of them says to the other: 'Decide!"' (Sahih ) (IT)
Reference (IT): Sunan an-Nasa'i 4469 (IT)
In-book reference (IT): Book 44, Hadith 21 (IT)
English translation (IT): Vol. 5, Book 44, Hadith 4474 (IT)