﴿ وَلَقَدْ ءَاتَيْنَا مُوسَى ٱلْكِتَٰبَ وَجَعَلْنَا مَعَهُۥٓ أَخَاهُ هَٰرُونَ وَزِيرًۭا ﴾

“AND, INDEED, [long before Muhammad] We vouchsafed revelation unto Moses, and appointed his brother Aaron to help him to bear his burden;”

(We verify gave Moses the Scripture) the Torah (and placed with him his brother Aaron as henchman) as helper.