It was narrated from Thabit bin Ad-Dahhak, that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم said: “Whoever swears by a religion other than Islam, telling a lie, will be as he said, and whoever kills himself with something, he will be punished with it in the Hereafter, and there is no vow concerning that which a man does not possess.” (Sahih)