Chapter 28: The Book of Oaths
' Umar b. al-Khattib reported Allah' s Messenger (ﷺ) as saying: Allah, the Great and Majestic, forbids you to swear by your fathers. Umar said: By Allah. I have never sworn (by my father) since I heard Allah' s Messenger (ﷺ) forbidding it mentioning them" on my behalf" nor on behalf of someone else.
Sahih Muslim 1646a