Cross reference
Exodus 16:24
24 And they kept it till the morning as Moses had said: and no smell came from it, and it had no worms.
Exodus 16:20
20 But they gave no attention to Moses, and some of them kept it till the morning and there were worms in it and it had an evil smell: and Moses was angry with them.
Exodus 16:33
33 And Moses said to Aaron, Take a pot and put one omer of manna in it, and put it away before the Lord, to be kept for future generations.