Śrāddha-kalpa: Dāna-phala, Medhya/Amedhya Dravya, and Uparāga
Eclipse) Observances (श्राद्धकल्पः—दानफल-मेध्यामेध्य-उपरागविधिः
स्नात्वा सचैलो मृद्भिस्तु शुद्धो द्वादशभिर्द्विजः / एतदेव भवेच्छौचं मैथुने वमने तथा
snātvā sacailo mṛdbhistu śuddho dvādaśabhirdvijaḥ / etadeva bhavecchaucaṃ maithune vamane tathā
A dvija becomes pure by bathing while clothed and cleansing with earth twelve times; the same purification is prescribed after sexual union and after vomiting as well.