سورة Al-Araf 7:106

قَالَ إِن كُنتَ جِئْتَ بِـَٔايَةٍۢ فَأْتِ بِهَآ إِن كُنتَ مِنَ ٱلصَّـٰدِقِينَ ١٠٦

Pharaoh said, “If you have come with a sign, then bring it if what you say is true.”