Śrāddha-kalpa: Dāna-phala, Medhya/Amedhya Dravya, and Uparāga
Eclipse) Observances (श्राद्धकल्पः—दानफल-मेध्यामेध्य-उपरागविधिः
कराभ्यामेव देवानां पितॄणां विकरं तथा / क्षरणं स्वप्नयोश्चैव तथा मूत्रपुरीषयो
karābhyāmeva devānāṃ pitṝṇāṃ vikaraṃ tathā / kṣaraṇaṃ svapnayoścaiva tathā mūtrapurīṣayo
Concerning the Devas and the Pitṛs, the ordinance of purification is taught for impurity arising through the hands, for emission in sleep, and likewise for urine and feces.