It is narrated from Sayyiduna Imran bin Husayn (may Allah be pleased with him) that a man came to the Prophet (peace and blessings be upon him), and with him was his brother whose belly had filled with water (dropsy). He said: "O Messenger of Allah! My brother's belly has filled with water. I took him to the physicians and they advised me to cauterize him. Shall I cauterize him?" The Messenger of Allah (peace and blessings be upon him) said to him: "Do not cauterize him; take him back to his family." Then he passed by a camel which struck his belly, and (because the water came out) his belly became flat. He brought him to the Prophet (peace and blessings be upon him) again, and he (peace and blessings be upon him) said: "Know that if you had taken him to the physicians (and they had cauterized him), you would surely have said that the fire cured him."
No one narrated this hadith from Yunus bin Ubayd (may Allah have mercy on him) except Abdullah bin Isa (may Allah have mercy on him).
Hadith Referenceالمعجم الأوسط / باب العين / 4801
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 333، والطبراني فى «الصغير» برقم: 691»