"The Messenger of Allah said: 'Whoever swears by a religion other than Islam, telling a lie, will be as he said.'" In his narration, Qutaibah said: "Intentionally." Yazid said: "Telling a lie will be as he said, and whoever kills himself with something. Allah will punish him with it in the Fire of Hell."
Sunan an-Nasa'i Book 35, Hadith 10
← Previous Hadith "The Messenger of Allah said: 'Do not swear by your fathers, nor by your mothers nor by the idols. Swear only by Allah, and do not swear unless you are sincere.'"

Sunan an-Nasa'i Book 35, Hadith 9 Next Hadith → "Whoever swears by a religion other than Islam, telling a lie, will be as he said, and whoever kills himself with something will be punished with it in the Hereafter."

Sunan an-Nasa'i Book 35, Hadith 11