Quran Al-Baqarah 2:24
فَإِن لَّمۡ تَفۡعَلُواْ وَلَن تَفۡعَلُواْ فَٱتَّقُواْ ٱلنَّارَ ٱلَّتِي وَقُودُهَا ٱلنَّاسُ وَٱلۡحِجَارَةُۖ أُعِدَّتۡ لِلۡكَٰفِرِينَ ٢٤
Translation
But if you do not - and you will never be able to - then fear the Fire, whose fuel is people and stones, prepared for the disbelievers.