The Compendium of Caraka 8.7.25

8.7.25

abhyaktasvinnagātrasya tailāktāṃ snehite gude/
athavā lavaṇāgāradhūmasiddhārthakaiḥ kṛtām//

smeared with oil, into the lubricated rectum of one whose limbs have been anointed and fomented; / or one made with salt, soot from the house, and white mustard.