Surah Al-Mutaffifin 83:13

إِذَا تُتْلَىٰ عَلَيْهِ ءَايَـٰتُنَا قَالَ أَسَـٰطِيرُ ٱلْأَوَّلِينَ

When Our verses are recited to him, he says, "Legends of the former peoples."

Translation: Saheeh International

Tafsir

When Our signs of the Qur’ān are recited to him he says ‘Mere fables asātīr of the ancients!’ mere tales that were written down sutirat in ancient times asātīr is the plural of ustūra or istāra.

Excerpt from Tafsir al-Jalalayn, commentary on 83:13, via Quran.com. The reader has the full commentary and 9 more tafsirs.