Paithinasidharmasutra 4.4: Kṛtyakalpataru · Ācārasāra (Gadādhara)

4.4

śrāddhe tu māṃsam aśnīyāt tathātithinimittake | yāvanti paśuromāṇi tāvan narakam ṛcchati

He should eat meat at an ancestral rite and similarly on the occasion of a guest. / As many hairs as the animal has, so many [years] does he go to hell.

He may eat meat at a śrāddha and when it is for a guest; (otherwise) he goes to hell for as many (years) as the animal has hairs.