Sahih Muslim Book 15, Hadith Number 4035.

Chapter : It is forbidden to take the oaths in the name of anyone else besides Allah.

‘Umar b. al-Khattib reported Allah’s Messenger (may peace be upon him) 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 (may peace be upon him) forbidding it mentioning them “on my behalf” nor on behalf of someone else.

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