चान्द्रायणं वा त्रीन् मासानभ्यस्येन्नियतैन्द्रियः । हविष्येण यवाग्वा वा गुरुतल्पापनुत्तये ॥ १०६ ॥
Or, controlling his organs, he may during three months continuously perform the lunar penance, (subsisting) on sacrificial food or barley-gruel, in order to remove (the guilt of) violating a Guru’s bed.
By means of these penances men who have committed mortal sins (Mahapataka) may remove their guilt, but those who committed minor offences, causing loss of caste, (Upapataka, can do it) by the various following penances.
He who has committed a minor offence by slaying a cow (or bull) shall drink during (the first) month (a decoction of) barley-grains; having shaved all his hair, and covering himself with the hide (of the slain cow), he must live in a cow-house.
During the two (following) months he shall eat a small (quantity of food) without any factitious salt at every fourth meal-time, and shall bathe in the urine of cows, keeping his organs under control.
During the day he shall follow the cows and, standing upright, inhale the dust (raised by their hoofs); at night, after serving and worshipping them, he shall remain in the (posture, called) virasana.