" مَنْ نَذَرَ أَنْ يُطِيعَ اللَّهَ فَلْيُطِعْهُ وَمَنْ نَذَرَ أَنْ يَعْصِيَ اللَّهَ فَلاَ يَعْصِهِ "
It was narrated from 'Aishah that the Messenger of Allah said: "Whoever vows to obey Allah, let him obey Him, and whoever vows to disobey Allah, let him not disobey Him."