After being healed, what did Naaman ask to take home from Israel?

Answer: Two mule-loads of soil

Naaman asked for as much soil as a pair of mules could carry, vowing to offer sacrifices to no god but the LORD.

““If you will not,” said Naaman, “please let me, your servant, be given as much soil as a pair of mules can carry. For your servant will never again make a burnt offering or a sacrifice to any other god but the LORD.”— 2 Kings 5:17 (BSB)