Hadith 513560
Chapter 31: Business Transactions - كتاب البيوع
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، أَنَّهُ سَمِعَ سَعِيدَ بْنَ الْمُسَيَّبِ، يَقُولُ مِنْ مَيْسِرِ أَهْلِ الْجَاهِلِيَّةِ بَيْعُ الْحَيَوَانِ بِاللَّحْمِ بِالشَّاةِ وَالشَّاتَيْنِ .
Yahya related to me from Malik from Da'ud ibn al-Husayn that he heard Said ibn alMusayyab say, "Part of the gambling of the people of Jahiliya was bartering live animals for slaughtered meat, for instance one live sheep for two slaughtered sheep."
Reference Muwatta Malik 513560
USC-MSA web (English) reference : Book 31, Hadith 65