A wagering contract or a risky contract. It applies to all those contracts which may bring a reward without any human effort or to contracts that involve non-business risks.
Al-’awraj
Al-‘ushr
Jahiliyyah
Ilm al-iqtisad al-Islami
Al-Qabil
Islah
Shariah compliant
Bai‘ al-laban fi duru‘ al-’an‘am
Bai‘ bil barnamaj
Al-hajjaji