If one cohabits with the wife of friend or the sister of one’s own wife one should observe fast for a day and a night and then perform the Krcchra rite. 7-8a. If a Brahmana carnally approaches a woman in her monthly course, he becomes pure only after three days. Three Taptakrcchra rites have been enjoined (as atonement for) sexual intercourse with a Candala woman. By observing Sdntapana} vow (in addition), he becomes pure. Otherwise no expiation is prescribed in Smrtis. 8b-9. For committing adultery with a woman from his maternal gotra (line of ancestors) or one belonging to his own Pravara lineage, he becomes pure if he observes with self- control and concentrated attention, the Candrayana vow. If a Brahmana has sexual intercourse with a Brahmana woman (other than his wife), he should perform one Krcchra expiation.