"The Messenger of Allah said: 'Allah forbids you to swear by your forefathers.'" 'Umar said: "By Allah, I never swore by them again, whether saying it for myself or reporting it of others."
Sunan an-Nasa'i Book 35, Hadith 8
← Previous Hadith "Allah forbids you to swear by your forefathers." 'Umar said: "By Allah, I never swore by them again, whether saying it for myself or reporting of others."

Sunan an-Nasa'i Book 35, Hadith 7 Next Hadith → "The Messenger of Allah said: 'Do not swear by your fathers, nor by your mothers nor by the idols. Swear only by Allah, and do not swear unless you are sincere.'"

Sunan an-Nasa'i Book 35, Hadith 9