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.'"
Sunan Ibn Majah Book 11, Hadith 9
← Previous Hadith "I took an oath by Lat and 'Uzza. The Messenger of Allah (ﷺ) said : 'Say: "La ilaha illallah wahdahu la sharika lahu" (None has the right to be worshipped but Allah alone, with no partner or associate)," then spit toward your left three times, and seek refuge with Allah, and do not do that again."'

Sunan Ibn Majah Book 11, Hadith 8 Next Hadith → "If that happens, I will be a Jew." The Messenger of Allah (ﷺ) said: 'That is guaranteed."

Sunan Ibn Majah Book 11, Hadith 10