Sunan Abi Dawud — Dialects and Readings of the Qur'an (Kitab Al-Huruf Wa Al-Qira'at) — Hadith No: 3981

Narrated Abdullah ibn Abbas: Divorced women shall wait concerning themselves for three monthly periods. Nor is it lawful for them to hide what Allah hath created in their wombs. This means that if a man divorced his wife he had the right to take her back in marriage though he had divorced her by three pronouncements. This was then repealed (by a Qur'anic verse). Divorce is only permissible twice

A’ishah said The Apostle of Allaah(ﷺ) gave us our choice and we chose him so that was not reckoned anything (i.e., divorce)

Amr ibn Muhajir reported on the authority of his father:Asma', daughter of Yazid ibn as-Sakan al-Ansariyyah, was divorced in the time of the Messenger of Allah (ﷺ). No waiting period was prescribed for a divorced woman (at that time). When Asma' was divorced, Allah, the Exalted, sent down the injunction of waiting period for divorce. She is the first of the divorced women about whom the verse relating to waiting period was sent down

Narrated Abdullah ibn Abbas: Abd Yazid, the father of Rukanah and his brothers, divorced Umm Rukanah and married a woman of the tribe of Muzaynah. She went to the Prophet (ﷺ) and said: He is of no use to me except that he is as useful to me as a hair; and she took a hair from her head. So separate me from him. The Prophet (ﷺ) became furious. He called on Rukanah and his brothers. He then said to those who were sitting beside him. Do you see so-and-so who resembles Abdu Yazid in respect of so-and-so; and so-and-so who resembles him in respect of so-and-so? They replied: Yes. The Prophet (ﷺ) said to Abdu Yazid: Divorce her. Then he did so. He said: Take your wife, the mother of Rukanah and his brothers, back in marriage. He said: I have divorced her by three pronouncements, Messenger of Allah. He said: I know: take her back. He then recited the verse: "O Prophet, when you divorce women, divorce them at their appointed periods." Abu Dawud said: The tradition narrated by Nafi' b. 'Ujair and 'Abd Allah b. Yazid b. Rukanah from his father on the authority of his grandfather reads: Rukanah divorced his wife absolutely (i.e. irrevocable divorce). The Prophet (ﷺ) restored her to him. This version is sounder (than other versions), for they (i.e. these narrators) are the children of his man, and the members of the family are more aware of his case. Rukanah divorced his wife absolutely (i.e. three divorces in one pronouncement) and the Prophet (ﷺ) made it a single divorce