4476 - وَ قَضَى أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ : فِي اِمْرَأَتَيْنِ نَكَحَ إِحْدَاهُمَا رَجُلٌ ثُمَّ طَلَّقَهَا وَ هِيَ حُبْلَى ثُمَّ خَطَبَ أُخْتَهَا فَنَكَحَهَا قَبْلَ أَنْ تَضَعَ أُخْتُهَا اَلْمُطَلَّقَةُ وَلَدَهَا فَأَمَرَهُ أَنْ يُطَلِّقَ اَلْأُخْرَى حَتَّى تَضَعَ أُخْتُهَا اَلْمُطَلَّقَةُ وَلَدَهَا ثُمَّ يَخْطُبُهَا وَ يُصْدِقُهَا صَدَاقَهَا مَرَّتَيْنِ ".
Hadith.4476 - Commander of the Faithful 
ruled concerning two sisters:
A man married one of them and then divorced her while she was pregnant. He then proposed to and married her sister before the divorced sister gave birth.
Imam ordered him to divorce the second sister until the first sister gave birth. After that, he could propose to the second sister again and pay her dowry twice.
