Jaiminīya (Talavakāra) Brāhmaṇa 1.57

1.57

— if the sacrificer should die when [the milk] is set on [the fire], what is the action in that case? What is the expiation? Having placed [the potsherds] around, he should just let it run out. This alone is the action in this case. And indeed this is the expiation for all haviṣ sacrifices. Now they also say: If the sacrificer should die when [the officiant] has run forward, what is the action in that case? What is the expiation? Just where that fourfold portion was assigned, right there he should draw it out. This alone is the action in this case. Now they also say: If the sacrificer should die when the first oblation has been offered, what is the action in that case? What is the expiation? And on that point some think: 'It must indeed be offered,' saying: 'The whole fire-offering of him whose first oblation has been offered is indeed offered.' One should not know it so. One does not offer the fire-offering of a dead man. Just where that fourfold portion was assigned, right there he should draw it out. This alone is the action in this case.