Quran 2:67 from Surah Al-Baqara on Divine Marvels.
وَإِذۡ قَالَ مُوسَىٰ لِقَوۡمِهِۦٓ إِنَّ ٱللَّهَ يَأۡمُرُكُمۡ أَن تَذۡبَحُواْ بَقَرَةٗۖ قَالُوٓاْ أَتَتَّخِذُنَا هُزُوٗاۖ قَالَ أَعُوذُ بِٱللَّهِ أَنۡ أَكُونَ مِنَ ٱلۡجَٰهِلِينَ
English translation: And when said Musa to his people Indeed Allah commands you that you slaughter a cow They said Do you take us (in) ridicule He said I seek refuge in Allah that I be among the ignorant
Transliteration: wa-idh qala musa liqawmihi inna al-laha yamurukum an tadhbahu baqaratan qalu atattakhidhuna huzuwan qala a'udhu bil-lahi an akuna mina al-jahilina