Mahabharata 10.18.5
लोकयज्ञः क्रियायज्ञो गृहयज्ञः सनातनःपञ्चभूतमयो यज्ञो नृयज्ञश्चैव पञ्चमः
lokayajñaḥ kriyāyajño gṛhayajñaḥ sanātanaḥpañcabhūtamayo yajño nṛyajñaścaiva pañcamaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book