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.
In-book : Book 13, Hadith 22
English translation : Book 12, Hadith 2191