Therefore the king, when he heard of the coming of Elisha, sent Hazael, one of his noble men, to meet him. He ordered him to persuade the prophet to take care of his healing, and since he thought that this request must be accompanied with gifts and offerings, according to secular customs, he sent him, through his ambassador, all sorts of goods from Damascus and forty camels. But certainly the prophets refused, just as Elisha had refused and had not accepted the offerings of Naaman, the Aramean.
Source: ON THE SECOND BOOK OF KINGS 8:7