Chapter 20: The Book on Vows and Oaths

Narrated Sa' d bin 'Ubaidah: That Ibn 'Umar heard a man saying: "No by the Ka' bah" so Ibn 'Umar said: "Nothing is sworn by other than Allah, for I heard the Messenger of Allah (ﷺ) say: 'Whoever swears by other than Allah, he has committed disbelief or shirk.'"
Jami at-Tirmidhi 1535
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