लोकादिमग्निं तमुवाच तस्मै या इष्टका यावतीर्वा यथा वा । स चापि तत्प्रत्यवदद्यथोक्तं अथास्य मृत्युः पुनरेवाह तुष्टः ॥ १५॥

lokādimagniṃ tamuvāca tasmai yā iṣṭakā yāvatīrvā yathā vā । sa cāpi tatpratyavadadyathoktaṃ athāsya mṛtyuḥ punarevāha tuṣṭaḥ ॥ 15॥

Tasmai = to him; [Yama raja] uvāca = spoke of; tam lokādim agnim = that Fire [that is being dealt with, which as Virat preceded the world - since it was the first embodied being;] yā iṣṭakā = the type of bricks, that are, to be collected (for the sacrificial altar); yāvatīḥ vā, = how many in number; yathā vā = or how the fire is to be arranged; sa cāpi = and he, [Naciketas, too]; prati-avadat = repeated verbatim; tat = all that; yathoktam = just as Yama had spoken; atha = then; tuṣṭah = being satisfied by his comprehension; mṛtyuḥ = Death; punaḥ eva aha = said over again.