The Compendium of Caraka 6.25.60

6.25.60

kuṣṭhānyabhihataṃ cāṅgaṃ śothāṃśca pracchayedbhiṣak/
sīvyaṃ kukṣyudarādyaṃ tu gambhīraṃ yadvipāṭitam//

forms of kuṣṭha, an injured limb, and swellings, the physician should perform scarification; / but that which is incised deeply in the abdomen, belly, and so on, is to be sutured.