Exodus 16:2-4, 20, 28
Exodus 16:20 NKJV
Notwithstanding they did not heed Moses. But some of them left part of it until morning, and it bred worms and stank. And Moses was angry with them.
Exodus 16:28 NKJV
And the LORD said to Moses, “How long do you refuse to keep My commandments and My laws?