Sunan an-Nasa'i, Hadith 3838 ⓘ
It was narrated from 'Aishah that the Messenger of Allah said: "There is no vow to commit an act of disobedience, and its expiation is the expiation for an oath."
أَخْبَرَنَا هَارُونُ بْنُ مُوسَى الْفَرْوِيُّ، قَالَ حَدَّثَنَا أَبُو ضَمْرَةَ، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، قَالَ حَدَّثَنَا أَبُو سَلَمَةَ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ نَذْرَ فِي مَعْصِيَةٍ وَكَفَّارَتُهَا كَفَّارَةُ الْيَمِينِ " .
also referenced under: Book 35, Hadith 78 (In-Book) & Volume 4, Book 35, Hadith 3869 (DarusSalam)