Al Baqarah, 51 Ayah
2:51
وَإِذۡ وَٰعَدۡنَا مُوسَىٰٓ أَرۡبَعِينَ لَيۡلَةٗ ثُمَّ ٱتَّخَذۡتُمُ ٱلۡعِجۡلَ مِنۢ بَعۡدِهِۦ وَأَنتُمۡ ظَٰلِمُونَ ٥١
Wa 'Idh Wā`adnā Mūsá 'Arba`īna Laylatan Thumma Attakhadhtumu Al-`Ijla Min Ba`dihi Wa 'Antum Žālimūna
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.