Hadith 31-263

وَبِإِسْنادِهِ عَنْ عَلِيِ‏ عَلَيْهِ السَّلامُ قالَ: قالَ النَّبِيُ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: اَنتَ مِنّي بِمَنزِلَةِ هارُونَ مِن مُوسَى‏ عَلَيْهِ السَّلامُ.

According to the same documentation, it has been narrated that Ali (a.s.) said that the Prophet (S) told him, “Your position relative to me is like that of Aaron’s position relative to Moses (a.s.).”