It was narrated from Ibn 'Umar: "Whoever swears an oath and says In sha' Allah, will never break his oath."

It was narrated from Ibn 'Umar: "Whoever swears an oath and says In sha' Allah, will never break his oath."

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ الزُّهْرِيُّ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، رِوَايَةً قَالَ ‏ "‏ مَنْ حَلَفَ وَاسْتَثْنَى فَلَمْ يَحْنَثْ ‏"‏ ‏.‏