Sura 25 Al-Furqan (The Criterion), ayah 35

1. وَلَقَدْ آتَيْنَا مُوسَى الْكِتَابَ وَجَعَلْنَا مَعَهُ أَخَاهُ هَارُونَ وَزِيرًا

   And We had certainly given Moses the Scripture and appointed with him his brother Aaron as an assistant.

   25:35

Translation: Saheeh International