When one spouse becomes Muslim before the other

It was narrated from Ibn 'Abbas that:

a woman came to the Prophet and became Muslim, and a man married her. Then her first husband came and said: "O Messenger of Allah, I became Muslim with her, and she knew that I was Muslim." So the Messenger of Allah took her away from her second husband and returned her to her first husband.

حَدَّثَنَا أَحْمَدُ بْنُ عَبْدَةَ، حَدَّثَنَا حَفْصُ بْنُ جُمَيْعٍ، حَدَّثَنَا سِمَاكٌ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ امْرَأَةً، جَاءَتْ إِلَى النَّبِيِّ ﷺ فَأَسْلَمَتْ . فَتَزَوَّجَهَا رَجُلٌ . قَالَ فَجَاءَ زَوْجُهَا الأَوَّلُ فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي قَدْ كُنْتُ أَسْلَمْتُ مَعَهَا وَعَلِمَتْ بِإِسْلاَمِي . قَالَ فَانْتَزَعَهَا رَسُولُ اللَّهِ ﷺ مِنْ زَوْجِهَا الآخَرِ وَرَدَّهَا إِلَى زَوْجِهَا الأَوَّلِ .

It was narrated from Ibn 'Abbas that:
the Messenger of Allah returned his daughter to Abul-'As bin Rabi' after two years, on the basis of the first marriage contract.

حَدَّثَنَا أَبُو بَكْرِ بْنُ خَلاَّدٍ، وَيَحْيَى بْنُ حَكِيمٍ، قَالاَ حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، أَنْبَأَنَا مُحَمَّدُ بْنُ إِسْحَاقَ، عَنْ دَاوُدَ بْنِ الْحُصَيْنِ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ ﷺ رَدَّ ابْنَتَهُ عَلَى أَبِي الْعَاصِ بْنِ الرَّبِيعِ بَعْدَ سَنَتَيْنِ بِنِكَاحِهَا الأَوَّلِ .