۞ وَوَٰعَدْنَا مُوسَىٰ ثَلَـٰثِينَ لَيْلَةً وَأَتْمَمْنَـٰهَا بِعَشْرٍ فَتَمَّ مِيقَـٰتُ رَبِّهِۦٓ أَرْبَعِينَ لَيْلَةً ۚ وَقَالَ مُوسَىٰ لِأَخِيهِ هَـٰرُونَ ٱخْلُفْنِى فِى قَوْمِى وَأَصْلِحْ وَلَا تَتَّبِعْ سَبِيلَ ٱلْمُفْسِدِينَ

Al-A'raf — Ayah 142

The Heights · الأعراف · 7:142

And We made an appointment with Mūsā for thirty nights, then We supplemented them with another ten. So, the total period fixed by his Lord was forty nights. Mūsā said to his brother Hārūn, “Take my place among my people and keep things right, and do not follow the way of mischief makers.”

Translation: Mufti Taqi Usmani