The Compendium of Bheḷa 8.8.3

8.8.3

na māti vā gude yuktovātādigadapīḍite | purīṣeṇāvṛte vāpi sa na gāḍhaṃ prapīḍitaḥ ||

Either it does not enter when administered into the rectum afflicted by diseases of vāta and the like, / or when blocked by feces, it is not pressed firmly;