Al-Anbiyaa • BN-TAFSEER-IBN-E-KASEER
﴿ قَالَ لَقَدْ كُنتُمْ أَنتُمْ وَءَابَآؤُكُمْ فِى ضَلَٰلٍۢ مُّبِينٍۢ ﴾
“Said he: “Indeed, you and your forefathers have obviously gone astray!””
Please check ayah 21:56 for complete tafsir.