Narrated Ibn `Umar: The Prophet said, "If anybody has to take an oath, he should swear only by Allah." The people of Quraish used to swear by their fathers, but the Prophet said, "Do not swear by your fathers. "
Hadith ReferenceSahih Bukhari / The Merits of Al-Ansar / Hadith: 3836
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة