بُلُوغُ الْمَرَامِ
Bulugh al-Maram 964
Business Transactions
وَأَخْرَجَهُ أَحْمَدُ , وَالْبَزَّارُ مِنْ حَدِيثِ أَبِي اَلدَّرْدَاءِ [1] .
Ahmad and al-Bazzar reported the aforesaid narration from the Hadith of Abu ad-Darda.
Sunnah.com reference: Book 7, Hadith 228