Sawda feared that the Prophet ﷺ would divorce her, so she said, "Do not divorce me. Keep me, and give my day to Ayesha." So he did, and then this verse was revealed, "And if a woman fears from her husband ill treatment or neglect, there is no blame upon the two of them if they reach a settlement between themselves, and settlement is better" [Nisa 4:128]. So whatever the two of them agree upon in settlement is permissible.
خشيت سودة أن يطلقها النبي ﷺ، فقالت: لا تطلقني وأمسكني، واجعل يومي لعائشة. ففعل، فنزلت{وان امرأة خافت من بعلها نشوزا أو إعراضا فلا جناح عليهما أن يصلحا بينهما صلحا والصلح خير} فما اصطلحا عليه من شيء فهو جائز.
Tirmidhi (3040) narrated it from Muhammad bin Muthanna, who said, we were told by Abu Dawud, and it is in his Musnad (2805), who said, we were told by Sulayman bin Muaz, from Simak, from Ikrima, from Ibn Abbas, and he related it. Tirmidhi said, "This is a hasan sahih gharib hadith." I say, rather it is only hasan, for Sulayman bin Muaz is Sulayman bin Qarm bin Muaz Taymi, about whom there is disagreement. Most authorities of hadith declared him daif, but Ibn Adi said, "He has hasan reports that are singular." Perhaps this is one of them. His teacher Simak bin Harb is well known for his inconsistency in transmitting from Ikrima, except that he was not inconsistent in this hadith due to its fame.