ChU 6.7.5
तं होवाच । यथा सोम्य महतो ऽभ्याहितस्यैकम् अङ्गारं खद्योतमात्रं परिशिष्टं तं तृनैर् उपसमाधाय प्राज्वलयेत् तेन ततो ऽपि बहु दहेत्
taṃ hovāca | yathā somya mahato 'bhyāhitasyaikam aṅgāraṃ khadyotamātraṃ pariśiṣṭaṃ taṃ tṛnair upasamādhāya prājvalayet tena tato 'pi bahu dahet
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
'As of a great lighted fire one coal of the size of a firefly, if left, may be made to blaze up again by putting grass upon it, and will thus burn more than this,
Translated by F. Max Müller