﴿ وَلَقَدْ قَالَ لَهُمْ هَٰرُونُ مِن قَبْلُ يَٰقَوْمِ إِنَّمَا فُتِنتُم بِهِۦ ۖ وَإِنَّ رَبَّكُمُ ٱلرَّحْمَٰنُ فَٱتَّبِعُونِى وَأَطِيعُوٓا۟ أَمْرِى ﴾

“And, indeed, even before [the return of Moses] had Aaron said unto them: "O my people! You are but being tempted to evil by this [idol] -for, behold, your [only] Sustainer is the Most Gracious! Follow me, then, and obey my bidding!"”

(And Aaron indeed had told them beforehand) before the return of Moses (pbuh) to them: (O my people! Ye are but being seduced therewith) you have been tried with the lowing sound and the worship of the calf, (for lo! your Lord is the Beneficent, so follow me) regarding His religion (and obey my order) obey my saying and advice.