´It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:` 'Whoever swears an oath and says In sha' Allah, he will have made an exception."(2)
Hadith ReferenceSunan Ibn Majah / The Chapters on Expiation / Hadith: 2104
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده صحيح