Exodus 16:18-20

Complete Jewish Bible

¹⁸ but when they put it in an ‘omer-measure, whoever had gathered much had no excess; and whoever had gathered little had no shortage; nevertheless each person had gathered according to his appetite.

¹⁹ Moshe told them, “No one is to leave any of it till morning.” ²⁰ But they didn’t pay attention to Moshe, and some kept the leftovers until morning. It bred worms and rotted, which made Moshe angry at them.