Surah Al-Baqara 2:51 — سُورَةُ البَقَرَةِ

وَإِذْ وَٰعَدْنَا مُوسَىٰٓ أَرْبَعِينَ لَيْلَةًۭ ثُمَّ ٱتَّخَذْتُمُ ٱلْعِجْلَ مِنۢ بَعْدِهِۦ وَأَنتُمْ ظَٰلِمُونَ ﴿51﴾

And when We did appoint for Moses forty nights (of solitude), and then ye chose the calf, when he had gone from you, and were wrong-doers.

Surah Al-Baqara (The Cow), ayah 51 of 286. Recited by Abdur-Rahman As-Sudais (عبدالرحمن السديس).