To vow for to be obedient to Allah
باب النَّذْرِ فِي الطَّاعَةِ
Sahih al-Bukhari, Book of Oaths and Vows(view book)
{وَمَا أَنْفَقْتُمْ مِنْ نَفَقَةٍ أَوْ نَذَرْتُمْ مِنْ نَذْرٍ فَإِنَّ اللَّهَ يَعْلَمُهُ وَمَا لِلظَّالِمِينَ مِنْ أَنْصَارٍ}.
Sahih al-Bukhari 6696
Narrated 'Aisha:
The Prophet ﷺ said, "Whoever vows that he will be obedient to Allah, should remain obedient to Him;
and whoever made a vow that he will disobey Allah, should not disobey Him."
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا مَالِكٌ، عَنْ طَلْحَةَ بْنِ عَبْدِ الْمَلِكِ، عَنِ الْقَاسِمِ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ عَنِ النَّبِيِّ ﷺ قَالَ " مَنْ نَذَرَ أَنْ يُطِيعَ اللَّهَ فَلْيُطِعْهُ، وَمَنْ نَذَرَ أَنْ يَعْصِيَهُ فَلاَ يَعْصِهِ ".
Classification
Sahih (Authentic)