﴿ إِنَّ ٱلَّذِى فَرَضَ عَلَيْكَ ٱلْقُرْءَانَ لَرَآدُّكَ إِلَىٰ مَعَادٍۢ ۚ قُل رَّبِّىٓ أَعْلَمُ مَن جَآءَ بِٱلْهُدَىٰ وَمَنْ هُوَ فِى ضَلَٰلٍۢ مُّبِينٍۢ ﴾

“VERILY, [O believer,] He who has laid down this Qur’an in plain terms, making it binding on thee, will assuredly bring thee back [from death] to a life renewed. Say [unto those who reject the truth]: My Sus­tainer knows best, as to who is right-guided and who is obviously lost in error!””

Please check ayah 28:88 for complete tafsir.