The Prophet ﷺ used to say, "I seek refuge (with YOU) by Your 'Izzat, None has the right to be worshipped but You Who does not die while the Jinns and the human beings die." (Using translation from Bukhārī 7383)
"أعوذُ بعزَّتِكَ، الَّذِي لا إلَه إلا أنْتَ، الَّذِي لَا يَمُوتُ، والجنُّ والإِنْسُ يَمُوتوُنَ".