فَاَرٰىهُ الْاٰيَةَ الْكُبْرٰىۖ ( النازعات: ٢٠ )
fa-arāhu
فَأَرَىٰهُ
Then he showed him
l-āyata
ٱلْءَايَةَ
the sign
l-kub'rā
ٱلْكُبْرَىٰ
the great
Fa araahul-aayatal kubra. (an-Nāziʿāt 79:20)
Sahih International:
And he showed him the greatest sign, (An-Nazi'at [79] : 20)
1 Mufti Taqi Usmani
So, he (Mūsā) showed him the biggest sign.