Sunan Ibn Majah 2098
سنن ابن ماجه#2098SahihIt was narrated that Thabit bin Ad-Dahhak said:The Messenger of Allah (ﷺ) said: 'Whoever takes an oath to follow a religion other than Islam, telling a deliberate lie, he will be as he said
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 11:9