He said, "You were certainly, you and your fathers, in manifest error."
The Saheeh International Quran Translation
قَالَ لَقَدْ كُنتُمْ أَنتُمْ وَءَابَآؤُكُمْ فِى ضَلَٰلٍ مُّبِينٍHe said, "You were certainly, you and your fathers, in manifest error."