(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."'" (JA)
Reference (JA): Sunan an-Nasa'i 3855 (JA)
In-book reference (JA): Book 35, Hadith 95 (JA)
English translation (JA): Vol. 4, Book 35, Hadith 3886 (JA)