That the Messenger of Allah ﷺ said: "There is no vowing for disobedience, and its atonement is the atonement of an oath."
قَالَ رَسُولُ اللَّهِ ﷺ لاَ نَذْرَ فِي مَعْصِيَةٍ وَكَفَّارَتُهُ كَفَّارَةُ يَمِينٍ قَالَ وَفِي الْبَابِ عَنِ ابْنِ عُمَرَ وَجَابِرٍ وَعِمْرَانَ بْنِ حُصَيْنٍ