Surah Al-A'raf — Ayah 107 (7:107)
فَأَلۡقَىٰ عَصَاهُ فَإِذَا هِيَ ثُعۡبَانٞ مُّبِينٞ ١٠٧
English translation (Saheeh International)
So he [i.e., Moses] threw his staff, and suddenly it was a serpent, manifest.1
- - i.e., genuine and not imagined, as a miracle from Allāh.
Brief commentary
So Moses threw his stick and it changed into a great snake, clear for all to see.