The Holy Quran 79:20 — Surah An-Nazi'at
Arabic text
فَأَرَىٰهُ ٱلْـَٔايَةَ ٱلْكُبْرَىٰ
Translation
So he (Moosa عليه الصلاة والسلام) showed him (Fir'oun) a great Aayah (many miracles).
Tafsir (excerpt) — Tafsir Usmani
Conveying the call to Pharaoh: that is, on arriving there, Musa ﵇ delivered the message of Allah, and in order to establish the proof against him conclusively, he showed him that greatest miracle: the staff turning into a huge serpent.
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