Witnesses 
Bukhari :: Book 3 :: Volume 48 :: Hadith 844
Narrated Abdullah:
The Prophet said, "Whoever has to take an oath should swear by Allah or remain silent." (i.e. He should not swear by other than Allah.)
Witnesses
Bukhari :: Book 3 :: Volume 48 :: Hadith 844
Narrated Abdullah:
The Prophet said, "Whoever has to take an oath should swear by Allah or remain silent." (i.e. He should not swear by other than Allah.)