Sunan an-Nasa'i 3761
سنن النسائي#3761SahihIt was narrated that Ibn 'Umar said:"The oath by which the Messenger of Allah used to swear was: 'No, by the Controller of the hearts
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Bukhari
In-book reference: 35:1