Muwatta Malik 1354

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 1354

In-book

Book 31, Hadith 16