In his Nazareth sermon, Jesus said that of Israel's many lepers, Elisha cleansed only whom?

Answer: Naaman the Syrian

Jesus pointed out that only Naaman the Syrian was cleansed in Elisha's time, though Israel had many lepers.

“And there were many lepers in Israel in the time of Elisha the prophet. Yet not one of them was cleansed—only Naaman the Syrian.””— Luke 4:27 (BSB)