Verse 67

وَإِذْ قَالَ مُوسَىٰ لِقَوْمِهِۦٓ إِنَّ ٱللَّهَ يَأْمُرُكُمْ أَن تَذْبَحُوا۟ بَقَرَةً قَالُوٓا۟ أَتَتَّخِذُنَا هُزُوًا قَالَ أَعُوذُ بِٱللَّهِ أَنْ أَكُونَ مِنَ ٱلْجَـٰهِلِينَ

And when Moses said to his people; God commands you to slaughter a heifer; they said are you joking? He said; may God protect me from being so ignorant.