Qur'an 7:106 · Al-A'raaf

قَالَ إِن كُنتَ جِئْتَ بِـَٔايَةٍۢ فَأْتِ بِهَآ إِن كُنتَ مِنَ ٱلصَّٰدِقِينَ

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