Śatapatha Brāhmaṇa ("of a hundred paths") 5.5.4.18

5.5.4.18

eteṣu paśuṣu | siṃhalomāni vṛkalomāni śārdūlalomānītyāvapatyetadvai tataḥ samabhavadyadenaṃ somo 'tyapavata tenaivainametatsamardhayati kṛtsnaṃ karoti tasmādetānyāvapati

On (the meat-portions of) those victims he throws hairs of a lion, hairs of a wolf, and hairs of a tiger, for that was what sprang therefrom, when Soma flowed right through him. He now supplies him therewith, and makes him whole: therefore he throws those (hairs) thereon.