Surah At-Taubah (The Repentance), Verse 109

اَفَمَنْ اَسَّسَ بُنْیَانَهٗ عَلٰی تَقْوٰی مِنَ اللّٰهِ وَرِضْوَانٍ خَیْرٌ اَمْ مَّنْ اَسَّسَ بُنْیَانَهٗ عَلٰی شَفَا جُرُفٍ هَارٍ فَانْهَارَ بِهٖ فِیْ نَارِ جَهَنَّمَ وَاللّٰهُ لَا یَهْدِی الْقَوْمَ الظّٰلِمِیْنَ ۟

Afaman assasa bunyaanahoo 'alaa taqwaa minal laahi wa ridwaanin khairun am man assasa bunyaanahoo 'alaa shafaa jurufin haarin fanhaara bihee fee Naari Jahannam; wallaahu laa yahdil qawmaz zaalimeen

“Which then is best? - he that layeth his foundation on piety to Allah and His good pleasure? - or he that layeth his foundation on an undermined sand-cliff ready to crumble to pieces? and it doth crumble to pieces with him, into the fire of Hell. And Allah guideth not people that do wrong.”

Quran 9:109 (Yusuf Ali Translation)