<128. And if a woman fears cruelty or desertion on her husband's part, there is no sin on them both if they make terms of peace between themselves; and making peace is better. And human souls are swayed by greed. But if you do good and have Taqwa, verily, Allah is Ever Well-Acquainted with what you do.>
<129. You will never be able to do perfect justice between wives even if it is your ardent desire, so do not incline too much to one of them so as to leave the other hanging. And if you do justice, and do all that is right and have Taqwa, then Allah is Ever Oft-Forgiving, Most Merciful.>
<130. But if they separate (by divorce), Allah will provide abundance for everyone of them from His bounty. And Allah is Ever All-Sufficient for His creatures' needs, All-Wise.>

Allah states, and thus legislates accordingly, that sometimes, the man inclines away from his wife, sometimes towards her and sometimes he parts with her. In the first case, when the wife fears that her husband is steering away from her or deserting her, she is allowed to forfeit all or part of her rights, such as provisions, clothing, dwelling, and so forth, and the husband is allowed to accept such concessions from her. Hence, there is no harm if she offers such concessions, and if her husband accepts them. This is why Allah said,
<there is no sin on them both if they make terms of peace between themselves;>
He then said,
<and making peace is better> than divorce. Allah’s statement,
<And human souls are swayed by greed.>
means, coming to peaceful terms, even when it involves forfeiting some rights, is better than parting.
Abu Dawud At-Tayalisi recorded that Ibn ‘Abbas said, “Sawdah feared that the Messenger of Allah might divorce her and she said, ‘O Messenger of Allah! Do not divorce me; give my day to ‘A’ishah.’ And he did, and later on Allah sent down,
<And if a woman fears cruelty or desertion on her husband's part, there is no sin on them both>
Ibn ‘Abbas said, “Whatever (legal agreement) the spouses mutually agree to is allowed.” At-Tirmidhi recorded it and said, “Hasan Gharib”.
In the Two Sahihs, it is recorded that ‘A’ishah said that when Sawdah bint Zam'ah became old, she forfeited her day to ‘A’ishah, and the Prophet used to spend Sawdah’s night with ‘A’ishah. There is a similar narration also collected by Al-Bukhari.
Al-Bukhari also recorded that ‘A’ishah commented;
<And if a woman fears cruelty or desertion on her husband's part>,
that it refers to, “A man who is married to an old woman, and he does not desire her and wants to divorce her. So she says, 'I forfeit my right on you.’ So this Ayah was revealed.”

Meaning of “Making Peace is Better”

Allah said,
<And making peace is better>. ‘Ali bin Abi Talhah related that Ibn ‘Abbas said that the Ayah refers to, “When the husband gives his wife the choice between staying with him or leaving him, as this is better than the husband preferring other wives to her.”
However, the apparent wording of the Ayah refers to the settlement where the wife forfeits some of the rights she has over her husband, with the husband agreeing to this concession, and that this settlement is better than divorce. For instance, the Prophet kept Sawdah bint Zam'ah as his wife after she offered to forfeit her day for ‘A’ishah. By keeping her among his wives, his Ummah may follow this kind of settlement. Since settlement and peace are better with Allah than parting, Allah said,
<and making peace is better>. Divorce is not preferred with Allah. The meaning of Allah’s statement,
<But if you do good and have Taqwa, verily, Allah is Ever Well-Acquainted with what you do>
if you are patient with the wife you dislike and treat her as other wives are treated, then Allah knows what you do and will reward you for it perfectly. Allah’s statement,
<You will never be able to do perfect justice between wives even if it is your ardent desire,>
means, O people! You will never be able to be perfectly just between wives in every respect. Even when one divides the nights justly between wives, there will still be various degrees concerning love, desire and sexual intimacy, as Ibn ‘Abbas, 'Ubaydah As-Salmani, Mujahid, Al-Hasan Al-Basri and Ad-Dahhak bin Muzahim stated.
Imam Ahmad and the collectors of the Sunan recorded that 'A'ishah said, "The Messenger of Allah used to treat his wives equally and proclaim,
«O Allah! This is my division in what I own, so do not blame me for what You own and I do not own» (referring to his heart).
This was the wording that Abu Dawud collected, and its chain of narrators is Sahih. Allah's statement,
<so do not incline too much to one of them>
means, do not exaggerate in your inclination and evade your duty of giving the other wives their rights.
<so as to leave the other hanging.>
meaning, the other wives will become like hanging objects, neither divorced nor married, according to Ibn 'Abbas, Mujahid, Sa'id bin Jubayr, Al-Hasan, Ad-Dahhak, Ar-Rabi' bin Anas, As-Suddi and Muqatil bin Hayyan.
Abu Dawud At-Tayalisi recorded that Abu Hurayrah said that the Messenger of Allah said,
«Whoever has two wives and inclines to one of them (too much), will come on the Day of Resurrection with one of his sides dragging.»
Allah's statement,
<And if you do justice, and do all that is right and have Taqwa, then Allah is Ever Oft-Forgiving, Most Merciful.>
The Ayah states: If you do justice and divide equally in what you have power over, while fearing Allah in all conditions, then Allah will forgive you the favoritism that you showed to some of your wives. Allah then said,
<But if they separate (divorce), Allah will provide abundance for everyone of them from His bounty. And Allah is Ever All-Sufficient for His creatures' needs, All-Wise.>
This is the third case between husband and wife, in which divorce occurs. Allah states that if the spouses separate by divorce, then Allah will suffice them by giving him a better wife and her a better husband. The meaning of,
<And Allah is Ever All-Sufficient for His creatures' needs, All-Wise.>
is: His favor is tremendous, His bounty is enormous and He is All-Wise in all His actions, decisions and commandments.