(43) باب الاِسْتِثْنَاءِ .
It was narrated that Abu Hurairah said:
"The Messenger of Allah said: 'Whoever swears an oath and says: "If Allah wills, then he has made an exception."'" (FR)
Reference (FR): Sunan an-Nasa'i 3855 (FR)
In-book reference (FR): Book 35, Hadith 95 (FR)
English translation (FR): Vol. 4, Book 35, Hadith 3886 (FR)