Al-Furqan 25:33

وَلَا يَأْتُونَكَ بِمَثَلٍ إِلَّا جِئْنَـٰكَ بِٱلْحَقِّ وَأَحْسَنَ تَفْسِيرًا

Walā yatūnaka bimathalin illā ji'nāka bil-ḥaqi wa-aḥsana tafsīran

And they do not come to you with an example [i.e., argument] except that We bring you the truth and the best explanation.