Surah Al-Baqarah, ayah 26

۞ إِنَّ ٱللَّهَ لَا يَسۡتَحۡيِۦٓ أَن يَضۡرِبَ مَثَلٗا مَّا بَعُوضَةٗ فَمَا فَوۡقَهَاۚ فَأَمَّا ٱلَّذِينَ ءَامَنُواْ فَيَعۡلَمُونَ أَنَّهُ ٱلۡحَقُّ مِن رَّبِّهِمۡۖ وَأَمَّا ٱلَّذِينَ كَفَرُواْ فَيَقُولُونَ مَاذَآ أَرَادَ ٱللَّهُ بِهَٰذَا مَثَلٗاۘ يُضِلُّ بِهِۦ كَثِيرٗا وَيَهۡدِي بِهِۦ كَثِيرٗاۚ وَمَا يُضِلُّ بِهِۦٓ إِلَّا ٱلۡفَٰسِقِينَ ٢٦

Innallāha lā yastahyī an yadriba mathalam mā ba'ūdatan famā fawqahā fa ammal-ladhīna āmanū faya'lamūna annahul-haqqu mir rabbihim wa ammal-ladhīna kafarū fayaqūlūna mādhā arādallāhu bihādhā mathalan yudillu bihī kathīran wayahdī bihī kathīran wamā yudillu bihī illal-fāsiqīn

Indeed, Allāh is not timid to present an example - that of a mosquito or what is smaller¹⁵ than it. And those who have believed know that it is the truth from their Lord. But as for those who disbelieve, they say, "What did Allāh intend by this as an example?" He misleads many thereby and guides many thereby. And He misleads not except the defiantly disobedient,