एतास् ते अग्ने समिधस् त्वम् इद्धः समिद् भव । आयुर् अस्मासु धेह्य् अमृतत्वम् आचार्याय ॥४॥
etās te agne samidhas tvam iddhaḥ samid bhava | āyur asmāsu dhehy amṛtatvam ācāryāya ||4||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
These pieces of fuel are for thee, O Agni; with them, O burning one, become thou united; put in us [long] life-time; put immortality in the Āryan.
Translated by William Dwight Whitney (1905)