Oaths and Vows (Kitab Al-Aiman Wa Al-Nudhur)

Dawud :: Book 21 : Hadith 3258

Narrated AbuSa'id al-Khudri:

When the Apostle of Allah (peace_be_upon_him) swore an oath strongly, he said: No, by Him in Whose hand is the soul of AbulQasim.

Source materials are from the University of Southern California MSA site
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