Taha 20:17

إِنَّنِي أَنَا اللَّهُ لَا إِلَـٰهَ إِلَّا أَنَا فَاعْبُدْنِي وَأَقِمِ الصَّلَاةَ لِذِكْرِي

Indeed, I am Allah. There is no deity except Me, so worship Me and establish prayer for My remembrance.

إِنَّ السَّاعَةَ آتِيَةٌ أَكَادُ أُخْفِيهَا لِتُجْزَىٰ كُلُّ نَفْسٍ بِمَا تَسْعَىٰ

Indeed, the Hour is coming - I almost conceal it - so that every soul may be recompensed according to that for which it strives.

فَلَا يَصُدَّنَّكَ عَنْهَا مَن لَّا يُؤْمِنُ بِهَا وَاتَّبَعَ هَوَاهُ فَتَرْدَىٰ

So do not let one avert you from it who does not believe in it and follows his desire, for you [then] would perish.

قَالَ هِيَ عَصَايَ أَتَوَكَّأُ عَلَيْهَا وَأَهُشُّ بِهَا عَلَىٰ غَنَمِي وَلِيَ فِيهَا مَآرِبُ أُخْرَىٰ

He said, "It is my staff; I lean upon it, and I bring down leaves for my sheep and I have therein other uses."

قَالَ أَلْقِهَا يَا مُوسَىٰ

[Allah] said, "Throw it down, O Moses."

فَأَلْقَاهَا فَإِذَا هِيَ حَيَّةٌ تَسْعَىٰ

So he threw it down, and thereupon it was a snake, moving swiftly.