Numbers 16:11

16:11 Therefore you and all your company have assembled together against the Lord! And Aaron – what is he that you murmur against him?” 1 

Numbers 35:7

35:7 “So the total of the towns you will give the Levites is forty-eight. You must give these together with their grazing lands.

1 sn The question indicates that they had been murmuring against Aaron, that is, expressing disloyalty and challenging his leadership. But it is actually against the Lord that they had been murmuring because the Lord had put Aaron in that position.