Agniveshyagrihyasutra 3.7.3.10

3.7.3.10

etāvadeva nānā nātra gorālambho 'nustaraṇīkāle kuśataruṇakaiḥ śuṣkamomayairghṛtenetyanustṛṇīyād agnervarma pari gobhirvyayasva ityetadeva parṇatsaruṣu \

Only this is different: here there is no seizing of a cow; at the time of the covering-animal, one should spread over [the effigy] young shoots of kuśa grass, dry cowdung, and clarified butter, [with the mantra], 'Wrap thyself with the cows as an armor against Agni'—this alone applies to the leaf-effigies.