Muwatta Malik #1354
Business Transactions
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ بْنِ عَوْفٍ، أَنَّ عَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ، ابْتَاعَ وَلِيدَةً فَوَجَدَهَا ذَاتَ زَوْجٍ فَرَدَّهَا .
Yahya related to me from Malik from Ibn Shihab from Abu Salama
ibn Abd ar-Rahman ibn Awf that Abd ar-Rahman ibn Awf bought a slave-
girl and found that she had a husband, so he returned her.
About Muwatta Malik
This hadith is #1354 from Muwatta Malik, in the Book of Business Transactions.