Fornication, prohibited sex and adultery was banned. It was subjected to severest punishment by the Holy Quraan (Sura Noor XXIV : 3 and Sura Bani Israel XVII : 32)

Usury or interest was prohibited vide Sura Al-Baqarah II ; 278.

Intoxicants, liquor, gambling, stone alters and divining by arrows was also totally banned and made punishable. (Al-Quraan Sura V : 90)