Surah Az-Zukhruf, ayah 52

43:52

أَمۡ أَنَا۠ خَيۡرٞ مِّنۡ هَٰذَا ٱلَّذِي هُوَ مَهِينٞ وَلَا يَكَادُ يُبِينُ ٥٢

Am ana khayrum min hādhal-ladhī huwa mahīnun walā yakādu yubīn

Or am I [not] better than this one [i.e., Moses] who is insignificant and hardly makes himself clear?1442

Footnotes

1442 That was true previous to his appointment as a prophet, at which time Allāh corrected his speech impediment.