Verse 1.5.3.25

sa yajjuhvāmājyam pariśiṣṭamāsīt | yena yajñaṃ samasthāpayaṃstenaiva yathāpūrvaṃ havīṃṣyabhyaghārayanpunarevaināni tadāpyāyayannayātayāmānyakurvannayātayāma hyājyaṃ tasmāduttamam prayājamiṣṭvā yathāpūrvaṃ havīṃṣyabhighārayati punarevaināni tadāpyāyayatyayātayāmāni karotyayātayāma hyājyaṃ tasmādyasya kasya ca haviṣo'vadyati punareva tadabhighārayati sviṣṭakṛta eva tatpunarāpyāyatyayātayāma karotyatha yadā sviṣṭakṛte'vadyati na tataḥ punarabhighārayati no hi tataḥ kāṃ cana haviṣo'gnāvāhutiṃ hoṣyanbhavati

Preview of English translation:

25. Now what was left in the juhu of the butter wherewith they had established the sacrifice, with that they sprinkled the havis (dishes, or kinds, of sacrificial food) one after another, and thereby replenished them and again rendered them efficient, because the butter is indeed efficient. Hence after offering the last fore-offering, he sprinkles the havis one after another, and thereby replenishes them and again renders them efficient, because the butter is indeed efficient. Hence also from whatever sacrificial food he (afterwards at the principal oblations) cuts off (a portion for a deity), that he again sprinkles (with butter), that he replenishes and renders efficient for the (Svishtakrit) maker of good offering. But when he cuts off the portion for the maker of good offering, then he does not again sprinkle (the sacrificial food out of which the portion has been cut), since after that he will not make any other oblation in the fire from the sacrificial food.

For a detailled translation, including proper diacritics and footnotes, go the full English translation.