(7) باب مَا جَاءَ فِي الاِسْتِثْنَاءِ فِي الْيَمِينِ
Narrated Ibn 'Umar:
That the Messenger of Allah (ﷺ) said: "Whoever swears about an oath and says: 'If Allah wills (Insha Allah), then there is no breaking of the oath against him." (ID)
Reference (ID): Jami` at-Tirmidhi 1531 (ID)
In-book reference (ID): Book 20, Hadith 9 (ID)
English translation (ID): Vol. 3, Book 18, Hadith 1531 (ID)