7:106
قَالَ إِن كُنتَ جِئْتَ بِـَٔايَةٍ فَأْتِ بِهَآ إِن كُنتَ مِنَ ٱلصَّـٰدِقِينَ
qāla in kunta ji'ta biāyatin fati bihā in kunta mina l-ṣādiqīna
He said, ‘Produce this sign you have brought, if you are telling the truth.’
[Fir‘aun (Pharaoh)] said: "If you have come with a sign, show it forth, if you are one of those who tell the truth."