Numbers 7:12-13, 17

On the first day, Nahshon son of Amminadab, of the tribe of Judah, brought his offering. His offering was: a silver plate weighing three and a quarter pounds and a silver bowl weighing one and three-quarter pounds (according to the standard Sanctuary weights), each filled with fine flour mixed with oil as a Grain-Offering

This was the offering of Nahshon son of Amminadab.