Atharvaveda 11.3.32

11.3.32

[4.1]a) tátaś cainam anyéna śīrṣṇā́ prā́śīr yéna caitáṃ pū́rva ŕ̥ṣayaḥ prā́śnan |
[4.1]b) jyeṣṭhatás te prajā́ mariṣyatī́ty enam āha |
[4.1]c) táṃ vā́ aháṃ nā́rvā́ñcaṃ ná párāñcaṃ ná pratyáñcam |
[4.1]d) bŕ̥haspátinā śīrṣṇā́ |
[4.1]e) ténainaṃ prā́śiṣaṃ ténainam ajīgamam |
[4.1]f) eṣá vā́ odanáḥ sárvāṅgaḥ sárvaparuḥ sárvatanūḥ |
[4.1]g) sárvāṅga evá sárvaparuḥ sárvatanūḥ sáṃ bhavati yá eváṃ véda ||32|| [1]

If ⌊ca⌋ thou hast eaten it with another head than that (tátas) with which the ancient seers ate this, thy progeny, from the oldest down, will die: so one says to him; it verily I [have] not [eaten] coming hither (arvā́ñc), nor retiring, nor coming on; with Brihaspati [as] head, therewith have I eaten it, therewith have I made it go; this rice-dish, verily, is whole-limbed, whole-jointed, whole-bodied; whole-limbed, whole-jointed, whole-bodied becometh he who knoweth thus.