Mbh 12.36.1b

One again, by slaying down his life in a battle undertaken for the sake of a Brahmana, becomes cleansed of the sin of having slain a Brahmana. By giving away a hundred thousand kine unto persons deserving of gifts, one becomes cleansed of the sin of having slain a Brahmana as also, indeed, of all his sins. One that gives away five and twenty thousand kine of the Kapila species and while all of them have calved, becomes cleansed of all his sins. One who, at the point of death, gives away a thousand kine with calves unto poor but deserving persons, becomes freed from sin. That man, O king, who gives away a hundred steeds of the Kamvoja breed unto Brahmanas of regulated behaviour, becomes freed from sin. That man. O Bharata, who gives unto even one person all that he asks for, and who, having given it, does not speak of his act to any one, becomes freed from sin. If a person who has once taken alcohol drinks (as expiation) hot liquor, he sanctifies himself both here and hereafter. By falling from the summit of a mountain or entering a blazing fire, or by going on an everlasting journey after renouncing the world, one is freed from all sins. By performing the sacrifice laid down by Vrihaspati, a Brahmana who drinks alcoholic liquors may succeed in attaining to the region of Brahman. This has been said by Brahman himself. If a person, after having drunk alcoholic liquor, becomes humble and makes a gift of land, and abstains from it ever afterwards, he becomes sanctified and cleansed. The person that has violated his preceptor's bed, should lie down on a sheet of iron having heated it, and having cut off the emblem of his sex should leave the world for a life in the woods, with eyes always turned upwards. By casting off one's body, one becomes cleansed of all his evil acts. Women, by leading a regulated life for one year, become cleansed of all their sins.