"Sawdah feared that the Prophet ﷺ was going to divorce her, so she said: 'Do not divorce me, but keep me and give my day to 'Aishah.' So he ﷺ did so, and the following was revealed: Then there is no sin on them both if they make terms of peace between themselves, and making peace is better (4:128). So whatever they agree to make peace in something then it is permissible."
أَنْ يُطَلِّقَهَا النَّبِيُّ ﷺ فَقَالَتْ لاَ تُطَلِّقْنِي وَأَمْسِكْنِي وَاجْعَلْ يَوْمِي لِعَائِشَةَ فَفَعَلَ فَنَزَلَتْ ( فَلاَ جُنَاحَ عَلَيْهِمَا أَنْ يُصْلِحَا بَيْنَهُمَا صُلْحًا وَالصُّلْحُ خَيْرٌ ) فَمَا اصْطَلَحَا عَلَيْهِ مِنْ شَيْءٍ فَهُوَ جَائِزٌ كَأَنَّهُ مِنْ قَوْلِ ابْنِ عَبَّاسٍ