Surah 4

Surah 4:23

"Forbidden to you are: your mothers, your daughters, your sisters, your paternal aunts, your maternal aunts, (your) brothers’ daughters, (your) sisters’ daughters, the mothers who have nursed you, (those who are) your sisters by nursing, your wives’ mothers, and your stepdaughters who are in your care, (born) of wives you have gone into – but if you have not gone into them, (there is) no blame on you – and wives of your sons, those of your own loins, and that you should have two sisters at the same time, unless it is a thing of the past. Surely God is forgiving, compassionate."