"And in Moses" [51:38], meaning: And We left in the affair of Moses, "when We sent him to Pharaoh with a clear authority" [51:38], meaning: clear.
﴿وَفِي مُوسَى﴾ أَي: وَتَركنَا فِي أمْر مُوسَى ﴿إِذْ أَرْسَلْنَاهُ إِلَى فِرْعَوْنَ بِسُلْطَانٍ مُبين﴾ بَين