In the Gospel of John we read:
John 5:6, 8-10: "When Jesus saw [the lame man] lying there... 8Jesus said to him, 'Get up, pick up your pallet and walk.' 9Immediately the man became well, and picked up his pallet and began to walk. Now it was the Sabbath on that day. 10So the Jews were saying to the man who was cured, 'It is the Sabbath, and it is not permissible for you to carry your pallet'" (emphasis added).
What law of Moses tells us that this man could not pick up what appears to essentially be his bed?