وَهُمْ يَنْهَوْنَ عَنْهُ وَيَنْـَٔوْنَ عَنْهُ ۖ وَإِن يُهْلِكُونَ إِلَّآ أَنفُسَهُمْ وَمَا يَشْعُرُونَ
Wa hum yanhawna 'anhu wa yan'awna 'anhu wa iny yuhlikoona illaa anfusahum wa maa yash'uroon
وہ اس سے (اوروں کو بھی) روکتے ہیں اور خود بھی پرے رہتے ہیں مگر (ان باتوں سے) اپنے آپ ہی کو ہلاک کرتے ہیں اور (اس سے) بےخبر ہیں
They forbid others from it and keep away from it themselves. They destroy no one but themselves, though they do not perceive it.
The Arabic pairs two near-identical verbs, yanhawna and yan'awna: they hold others back from the message and hold themselves back from it. Early commentators read the line two ways — some applied it to Abu Talib, who shielded the Prophet while declining the message himself, others to the Quraysh leadership as a whole. Either way the closing clause stands: the damage lands on the one inflicting it.