The Prophet ﷺ divorced Hafsah, but he took her back in marriage. (Using translation from Abū Dāʾūd 2283)

«أَنُّ رَسُولَ اللَّهِ ﷺ طَلَّقَ حَفْصَةُ ثُمَّ رَاجَعَهَا»