﴿ قَالُوا۟ بَلْ جِئْنَٰكَ بِمَا كَانُوا۟ فِيهِ يَمْتَرُونَ ﴾

“They answered: "Nay, but we have come unto thee with [the announcement of] something that they [who are given to evil] have always been wont to call in question,”

Please check ayah 15:64 for complete tafsir.