yāvataḥ saṃspṛśed aṅgair brāhmaṇāñ śūdrayājakaḥ / tāvatāṃ na bhaved dātuḥ phalaṃ dānasya paurtikam //
The giver (of a Sraddha) loses the reward, due for such a non-sacrificial gift, for as many Brahmanas as a (guest) who sacrifices for Sudras may touch (during the meal) with his limbs.