[Machine] "Allah ﷻ says {except for what has already occurred} [Quran 4:22], meaning in regards to marrying the wives of one's fathers, because the Arabs used to marry their fathers' wives. Then Allah prohibited this and also prohibited marrying one's female relatives through marriage or blood. He did not say 'except for what has already occurred' concerning marrying relatives through blood and marriage, and he said in regards to two sisters {except for what has already occurred} [Quran 4:23], because they used to marry both sisters together. So he prohibited marrying both sisters together, except for what has already occurred before the prohibition. {Indeed, Allah is Forgiving and Merciful} [Quran 4:23] because it was done before the prohibition of marrying both sisters together."  

اللهُ ﷻ {إِلَّا مَا قَدْ سَلَفَ} [النساء 22] يَعْنِي فِي نِسَاءِ الْآبَاءِ لِأَنَّ الْعَرَبَ كَانُوا يَنْكِحُونَ نِسَاءَ الْآبَاءِ ثُمَّ حَرَّمَ النَّسَبَ وَالصِّهْرَ وَلَمْ يَقُلْ إِلَّا مَا قَدْ سَلَفَ لِأَنَّ الْعَرَبَ كَانَتْ لَا تَنْكِحُ النَّسَبَ وَالصِّهْرَ وَقَالَ فِي الْأُخْتَيْنِ {إِلَّا مَا قَدْ سَلَفَ} [النساء 22] لِأَنَّهُمْ كَانُوا يَجْمَعُونَ بَيْنَهُمَا فَحَرَّمَ جَمْعَهُمَا جَمِيعًا إِلَّا مَا قَدْ سَلَفَ قَبْلَ التَّحْرِيمِ {إِنَّ اللهَ كَانَ غَفُورًا رَحِيمًا} [النساء 23] لِمَا كَانَ مِنْ جِمَاعِ الْأُخْتَيْنِ قَبْلَ التَّحْرِيمِ