Śatapatha Brāhmaṇa ("of a hundred paths") 1.7.4.3

1.7.4.3

tadvai devānāmāga āsa | ya itthaṃ svāṃ duhitaramasmākaṃ svasāraṃ karotīti

The gods then said to this god who rules over the beasts (Rudra), 'This one, surely, commits a sin who acts thus towards his own daughter, our sister. Pierce him!' Rudra, taking aim, pierced him. Half of his seed fell to the ground. And thus it came to pass.