Charak Samhita
शोधना बस्तयस्तीक्ष्णा न हितास्तस्य कृत्स्नशः। सौवर्चलाभयाव्योषैः सिद्धं तस्मै घृतं हितम्॥२०॥
Tikshna shodhana basti (strong purificatory enemas) is totally unsuitable. Ghrita prepared by sauvarchala salt, abhaya (Terminalia chebula), vyosha (pippali, maricha, sunthi i.e., Piper longum, Piper indicum and Zingiber officinale) is suitable.
english translation
zodhanA bastayastIkSNA na hitAstasya kRtsnazaH। sauvarcalAbhayAvyoSaiH siddhaM tasmai ghRtaM hitam॥20॥
hk transliteration by Sanscript