Abu Sahba' said toIbn 'Abbas (RA) : Do you know that three (divorces) were treated as one during the lifetime of Allah's Apostle (ﷺ) , and that of Abu Bakr, and during three (years) of the caliphate of Umar (RA) ? Ibn Abbas (RA) said: Yes.
Hadith ReferenceSahih Muslim / The Book of Divorce / Hadith: 1472