Sale or purchase of gifts before they had been accepted. The Prophet (peace be upon him) prohibited this type of sale.
Al-tijarah al-gha’ibah
Bai‘ al-hasah
Bai‘ al-sikak
Al-‘ushr
General Takaful
Esham
Bai‘ darbah al-gha’is
Al-sa
Dar al-tiraz
Musaqah