The Compendium of Bheḷa 8.6.18

8.6.18

anilaprabhavā hyete sarve vastivaśānugāḥ | tasmād ardhaṃ cikitsāyāḥ sarvaṃ vā vastir ucyate ||

For all these originate from vāta and are under the sway of the enema; / therefore, the enema is called half of all treatment, or even the whole.