Al Baqarah, 24 Ayah
2:24
فَإِن لَّمۡ تَفۡعَلُواْ وَلَن تَفۡعَلُواْ فَٱتَّقُواْ ٱلنَّارَ ٱلَّتِي وَقُودُهَا ٱلنَّاسُ وَٱلۡحِجَارَةُۖ أُعِدَّتۡ لِلۡكَٰفِرِينَ ٢٤
Fa'in Lam Taf`alū Wa Lan Taf`alū Fa Attaqū An-Nāra Allatī Waqūduhā An-Nāsu Wa Al-Ĥijāratu ۖ 'U`iddat Lilkāfirīna
But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.