Surah Ash-Shu'ara 26:32
فَأَلْقَىٰ عَصَاهُ فَإِذَا هِىَ ثُعْبَانٌ مُّبِينٌ
So [Moses] threw his staff, and suddenly it was a serpent manifest.
Translation: Saheeh International
Tafsir
So he threw down his staff and lo! it was a manifest serpent a great snake.
Excerpt from Tafsir al-Jalalayn, commentary on 26:32, via Quran.com. The reader has the full commentary and 9 more tafsirs.