قَالَ إِن كُنتَ جِئْتَ بِـَٔايَةٍ فَأْتِ بِهَآ إِن كُنتَ مِنَ ٱلصَّـٰدِقِينَ

Qala in kunta ji/ta bi-ayatinfa/ti biha in kunta mina assadiqeen

[Pharaoh] said, "If you have come with a sign, then bring it forth, if you should be of the truthful."