The magicians, (seeing the miracle), fell down in prostration, saying: "We believe in the Lord of Moses and Aaron."
70
Tafseer
'Abdullāh Ibn 'Abbās / Muḥammad al-Fīrūzabādī
تفسير : (then the wizards were (all) flung down prostrate) their prostration was so quick that one had the impression they were thrown to the ground, (crying) i.e. the magicians: (we believe in the lord of aaron and moses.
Jalāl al-Dīn al-Maḥallī
تفسير : thereat the sorcerers cast [their heads] down prostrating, they fell down prostrating to god, exalted be he: they said, ‘we [now] believe in the lord of aaron and moses’.