Surah Taha, Verse 90

وَلَقَدۡ قَالَ لَهُمۡ هَٰرُونُ مِن قَبۡلُ يَٰقَوۡمِ إِنَّمَا فُتِنتُم بِهِۦۖ وَإِنَّ رَبَّكُمُ ٱلرَّحۡمَٰنُ فَٱتَّبِعُونِي وَأَطِيعُوٓاْ أَمۡرِي٩٠

walaqad qāla lahum hārūnu min qablu yāqawmi innamā futintum bihi wa-inna rabbakumu l-raḥmānu fa-ittabiʿūnī wa-aṭīʿū amrī

And Aaron had already told them before [the return of Moses], "O my people, you are only being tested by it, and indeed, your Lord is the Most Merciful, so follow me and obey my order."