Translation for 16:103

وَلَقَدۡ نَعۡلَمُ أَنَّهُمۡ يَقُولُونَ إِنَّمَا يُعَلِّمُهُۥ بَشَرٞۗ لِّسَانُ ٱلَّذِي يُلۡحِدُونَ إِلَيۡهِ أَعۡجَمِيّٞ وَهَٰذَا لِسَانٌ عَرَبِيّٞ مُّبِينٌ ١٠٣
And We surely know that they say, “No one is teaching him except a human.” But the man they refer to speaks a foreign tongue, whereas this ˹Quran˺ is ˹in˺ eloquent Arabic.1

Foot notes

76853

 Some Meccan pagans claimed that the Prophet (ﷺ) received the Quran from a non-Arab slave owned by an Arab pagan.