Jami` at-Tirmidhi 1525
جامع الترمذي#1525SahihNarrated 'Aishah:That the Prophet (ﷺ) said: "There is no vowing in disobedience to Allah, and its atonement is the atonement of an oath
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih Lighairihi
Al-AlbaniSahih
Zubair Ali ZaiSahih Bukhari
In-book reference: 20:2