البقرة — Al-Baqarah Ayat 51
وَاِذْ وٰعَدْنَا مُوْسٰىٓ اَرْبَعِيْنَ لَيْلَةً ثُمَّ اتَّخَذْتُمُ الْعِجْلَ مِنْۢ بَعْدِهٖ وَاَنْتُمْ ظٰلِمُوْنَ
Wa iż wā‘adnā mūsā arba‘īna lailatan ṡummattakhażtumul-‘ijla mim ba‘dihī wa antum ẓālimūn(a).
"And [recall] when We made an appointment with Moses for forty nights. Then you took [for worship] the calf after him, while you were wrongdoers."