Exodus 16:18, 33, 36

Then they measured it. The person who gathered more did not have too much, nor did the person who gathered less have too little. Each person gathered just as much as he needed.

Moses told Aaron, “Take a jar and fill it with two quarts of manna. Then place it before the LORD, and save it for your descendants.”

The measure they used for the manna was two quarts, or one-tenth of an ephah.