question #1 Sahih Muslim 110d, Book 1, Hadith 211 : What are the consequences of taking an oath falsely on a religion other than Islam?

Verily the Messenger of Allah (ﷺ) said: He who took an oath on a religion other than Islam as a liar would become so as he said, and he who slaughtered himself with a thing would be slaughtered with that on the Day of Resurrection.