فَاِنۡ لَّمۡ تَفۡعَلُوۡا وَلَنۡ تَفۡعَلُوۡا فَاتَّقُوۡا النَّارَ الَّتِىۡ وَقُوۡدُهَا النَّاسُ وَالۡحِجَارَةُ ۖۚ اُعِدَّتۡ لِلۡكٰفِرِيۡنَ
But if you fail to do it — and you shall never be able to do it — then guard yourselves against the Fire whose fuel is human beings (the disbelievers) and stones (their idols) which is prepared for disbelievers.