Manusmriti

siva.sh/manusmriti/11/37

नरके हि पतन्त्येते जुह्वन्तः स च यस्य तत् । तस्माद् वैतानकुशलो होता स्याद् वेदपारगः ॥ ३७ ॥

sanskrit

For such (persons) offering a burnt-oblation sink into hell, as well as he to whom that (Agnihotra) belongs; hence the person who sacrifices (for another) must be skilled in (the performance of) Vaitana (rites), and know the whole Veda.

english translation

narake hi patantyete juhvantaH sa ca yasya tat | tasmAd vaitAnakuzalo hotA syAd vedapAragaH || 37 ||

hk transliteration by Sanscript