فَإِن لَّمْ يَسْتَجِيبُوا۟ لَكَ فَٱعْلَمْ أَنَّمَا يَتَّبِعُونَ أَهْوَآءَهُمْ ۚ وَمَنْ أَضَلُّ مِمَّنِ ٱتَّبَعَ هَوَىٰهُ بِغَيْرِ هُدًى مِّنَ ٱللَّهِ ۚ إِنَّ ٱللَّهَ لَا يَهْدِى ٱلْقَوْمَ ٱلظَّـٰلِمِينَ
fa-in lam yastajībū laka fa-iʿ'lam annamā yattabiʿūna ahwāahum waman aḍallu mimmani ittabaʿa hawāhu bighayri hudan mina l-lahi inna l-laha lā yahdī l-qawma l-ẓālimīna
But if they do not respond to you - then know that they only follow their [own] desires. And who is more astray than one who follows his desire without guidance from Allāh? Indeed, Allāh does not guide the wrongdoing people.
— Saheeh International
If they do not respond to you, you will know that they follow only their own desires. Who is further astray than the one who follows his own desires with no guidance from God? Truly God does not guide those who do wrong.
— M. A. S. Abdel Haleem
But if they answer you not (i.e. do not bring the Book nor believe in your doctrine of Islâmic Monotheism), then know that they only follow their own lusts. And who is more astray than one who follows his own lusts, without guidance from Allâh? Verily Allâh guides not the people who are Zâlimûn (wrong-doers, disobedient to Allâh, and polytheists).
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali