Shloka 76
Adhyāya 166: Kṛtaghna-doṣa (कृतघ्नदोषः) — the fault of ingratitude and the limits of expiation
ब्राह्मणस्तु सुरापस्य गन्धमादाय सोमप:
brāhmaṇas tu surāpasya gandham ādāya somapaḥ |
ビーシュマは言った。「ソーマ（Soma）を飲むブラーフマナが、酒を飲む者の臭いをたとえ嗅いだだけでも、浄罪の行をなすべきである。三日間は熱湯のみを飲み、次の三日間は温めた乳のみを飲む。さらにその後の三日間は、ただ『風』のみによって生きる（すなわち完全に断食する）。この修行によって彼は清められる。」
भीष्म उवाच
Educational Q&A
The verse teaches that even indirect contact with intoxicants (here, merely smelling a drunkard) is treated as a serious impurity for a Soma-qualified Brahmin, and that purity is restored through a structured, time-bound penance emphasizing restraint and bodily discipline.
In Bhishma’s instruction on dharma in the Shanti Parva, he lays down a specific expiation: three days on hot water, three days on hot milk, and three days living only on air, after which the Brahmin is considered purified.