am ▁because ▁they ▁are ▁mentioned ▁in ▁the ▁Q ur an ▁( An - N isa ▁ 2 2 - 2 3 ): ▁ ▁" And ▁marry ▁not ▁women ▁whom ▁your ▁f athers ▁married , ▁except ▁what ▁has ▁already ▁passed ; ▁indeed ▁it ▁was ▁shame ful ▁and ▁most ▁h ateful , ▁and ▁an ▁evil ▁way . ▁For b idden ▁to ▁you ▁( for ▁marriage ) ▁are : ▁your ▁moth ers , ▁your ▁daughters , ▁your ▁sister s , ▁your ▁pat ernal ▁a un ts , ▁your ▁mat ernal ▁a un ts , ▁brother ' s ▁daughters , ▁sister ' s ▁daughters , ▁your ▁fost er ▁moth ers , ▁your ▁sister s ▁from ▁su ck ling , ▁moth ers ▁of ▁your ▁sp ouses , ▁your ▁step - d augh ters ▁from ▁your ▁those ▁sp ouses ▁you ▁have ▁entered ▁into ▁them ▁but ▁if ▁you ▁have ▁not ▁entered ▁into ▁them ▁then ▁there ▁is ▁no ▁bl ame ▁on ▁you , ▁sp ouses ▁of ▁your ▁sons ▁from ▁your ▁own ▁lo ins ▁and ▁that ▁you ▁add ▁two ▁sister s ▁except ▁that ▁has ▁passed ; ▁indeed ▁God ▁is ▁forg iving ▁and ▁merc iful . ▁ ▁All ▁of ▁the ▁man ' s ▁female ▁relatives ▁mentioned ▁in ▁these ▁two ▁vers es ▁are ▁considered ▁his ▁ma har im , ▁because ▁it ▁is ▁un law ful ▁( har am ) ▁for ▁him ▁to ▁marry ▁them , ▁except ▁the ▁wife ' s ▁sister , ▁whom ▁he ▁can ▁marry ▁if ▁he ▁divor ces ▁her ▁sister , ▁or ▁if ▁his ▁wife ▁dies . ▁The ▁notion ▁of ▁ma hr