The Compendium of Caraka 6.12.58

6.12.58

kṣīraṃ ghaṭe citrakakalkalipte dadhyāgataṃ sādhu vimathya tena/
tajjaṃ ghṛtaṃ citrakamūlagarbhaṃ takreṇa siddhaṃ śvayathughnamagryam//

Milk curdled in a pot smeared with citraka paste, properly churned— / the ghee born from that, containing citraka root as its paste and cooked with buttermilk, is supreme in destroying swelling.