Charak Samhita
सर्वस्थानावृतेऽप्याशु तत् कार्यं मारुते हितम् । यापना बस्तयः प्रायो मधुराः सानुवासनाः ॥२४०॥
and at the same time not antagonistic to kapha and pitta is beneficial. The yapana enema as well as the sweet unctuous enema is generally beneficial,
english translation
sarvasthAnAvRte'pyAzu tat kAryaM mArute hitam । yApanA bastayaH prAyo madhurAH sAnuvAsanAH ॥240॥
hk transliteration by Sanscript