Al-Mutaffifin • BN-TAFSEER-IBN-E-KASEER
﴿ إِذَا تُتْلَىٰ عَلَيْهِ ءَايَٰتُنَا قَالَ أَسَٰطِيرُ ٱلْأَوَّلِينَ ﴾
“[and so,] whenever Our messages are conveyed to them, they but say, "Fables of ancient times!"”
Please check ayah 83:17 for complete tafsir.