Exodus 16:16-18

16This is the word that Adonai has commanded. Every man is to gather according to his needs, an omer per person, according to the number of people per household. Each man is to take it for those who are in his tent.”

17Bnei-Yisrael did so, and some gathered more, some less.

18When they measured it with an omer, those who gathered more had nothing left over, and those that gathered less did not lack at all. Every man gathered according to his appetite.