Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates this statement of the Prophet (peace and blessings of Allah be upon him): "A woman should not be married together with her paternal aunt, nor should a paternal aunt be married together with her niece. A woman should not be married together with her maternal aunt, nor should a maternal aunt be married together with her niece (i.e., a paternal aunt and her niece or a maternal aunt and her niece should not be joined together in marriage)."