Surah Ar-Ra'd — Ayah 19 (13:19)
۞ أَفَمَن يَعۡلَمُ أَنَّمَآ أُنزِلَ إِلَيۡكَ مِن رَّبِّكَ ٱلۡحَقُّ كَمَنۡ هُوَ أَعۡمَىٰٓۚ إِنَّمَا يَتَذَكَّرُ أُوْلُواْ ٱلۡأَلۡبَٰبِ ١٩
English translation (Saheeh International)
Then is he who knows that what has been revealed to you from your Lord is the truth like one who is blind? They will only be reminded who are people of understanding -
Brief commentary
The one who knows that what Allah has revealed to you, O Messenger, is undoubtedly the Truth from your Lord, and who has faith in and responds to Allah, cannot be equal to someone who is blind, who disbelieves in Allah and does not respond to Him. Only those with sound understanding will pay heed to and take a lesson from this.