Surah Ash-Shu'ara, verse 31

قَالَ لَئِنِ ٱتَّخَذْتَ إِلَـٰهًا غَيْرِى لَأَجْعَلَنَّكَ مِنَ ٱلْمَسْجُونِينَ ﴿٢٩﴾

[Pharaoh] said, "If you take a god other than me, I will surely place you among those imprisoned."

قَالَ أَوَلَوْ جِئْتُكَ بِشَىْءٍۢ مُّبِينٍۢ ﴿٣٠﴾

[Moses] said, "Even if I brought you something [i.e., proof] manifest?"

فَأَلْقَىٰ عَصَاهُ فَإِذَا هِىَ ثُعْبَانٌۭ مُّبِينٌۭ ﴿٣٢﴾

So [Moses] threw his staff, and suddenly it was a serpent manifest.

وَنَزَعَ يَدَهُۥ فَإِذَا هِىَ بَيْضَآءُ لِلنَّـٰظِرِينَ ﴿٣٣﴾

And he drew out his hand; thereupon it was white for the observers.