Hadith 3261
Narrated Abdullah ibn Umar: The Prophet ﷺ said: If anyone says when swearing an oath: "If Allah wills, " he makes an exception.
Hadith 3262
Narrated Abdullah ibn Umar: The Prophet ﷺ said: If anyone swears an oath and makes an exception, he may fulfil it if he wishes and break it if he wishes without any accountability for breaking.