كتاب البيوع
7  
Business Transactions
Bulugh al-Maram 862
The aforesaid Hadith has a weak supporting narration, on the authority of Fadalah bin 'Ubaid (RA) reported by al-Baihaqi.
وَلَهُ شَاهِدٌ ضَعِيفٌ عَنْ فَضَالَةَ بْنِ عُبَيْدٍ عِنْدَ اَلْبَيْهَقِيِّ 1‏ .‏
Reference : Bulugh al-Maram 862
In-book reference : Book 7, Hadith 862
English translation : Book 7, Hadith 865
Hadith Text
Reference