Book of Khulʿ
Allah—exalted is He—says: “It is not lawful for you to take back…” (al-Baqarah 2:229).
421 — They unanimously agree that a man is not permitted to take back anything he has given his wife unless the marital disobedience (nushūz) originates from her side.
Al-Nuʿmān alone held that if the wrongdoing and nushūz come from the husband and she obtains a khulʿ divorce, it is valid and takes effect; the husband is sinful, yet he is not compelled to return what he has taken.
422 — They unanimously agree that khulʿ may be concluded without recourse to the ruler (1).
Al-Ḥasan and Ibn Sīrīn dissented, saying that it is only permissible in the presence of the ruler.
Book of Īlāʾ
423 — They unanimously agree that every oath that prevents sexual relations is an īlāʾ.
424 — They unanimously agree that the retraction (fayʾ) is intercourse, provided the husband has no valid excuse (2).
425 — They unanimously agree that if a man says, “My slaves are free if I have intercourse with my wife,” and then he sells them, the īlāʾ is nullified for him.