Sunnah.com reference : Book 7, Hadith 20English translation : Book 7, Hadith 800Arabic reference : Book 7, Hadith 797
Narrated Abu Hurairah (RA):
Allah's Messenger (ﷺ) forbade a transaction determined by throwing stones, and the transaction which involves some uncertainty (or cheating).

[Reported by Muslim].
وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: { نَهَى رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-عَنْ بَيْعِ اَلْحَصَاةِ, وَعَنْ بَيْعِ اَلْغَرَرِ }  رَوَاهُ مُسْلِمٌ  1‏ .‏‏1 ‏- صحيح.‏ رواه مسلم ( 1513 )‏.‏