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.