You are forbidden to take as wives your mothers, daughters, sisters, paternal and maternal aunts, your brothers' daughters and your sisters' daughters, your foster mothers and foster sisters, your wives' mothers and stepdaughters in your protection and the daughters of your wives with whom you have consummated your marriage; but if you have not consummated your marriage then you will not be blamed [if you marry their daughters.] You are also forbidden to marry the spouses of your sons or two sisters together, except what has already passed. Surely, God is ever-forgiving and merciful.