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

Dawud :: Book 21 : Hadith 3255

Narrated Abdullah ibn Umar:

The Prophet (peace_be_upon_him) said: If anyone says when swearing an oath: "If Allah wills," he makes an exception.

Source materials are from the University of Southern California MSA site
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