Srimad-Bhagavatam: Canto 3 - Chapter 1 - Verse 54

Sanskrit:

निरभिद्यतास्य प्रथमं मुखं वाणी ततोऽभवत् ।वाण्या वह्निरथो नासे प्राणोतो घ्राण एतयो: ॥ ५४ ॥

ITRANS:

nirabhidyatāsya prathamaṁmukhaṁ vāṇī tato ’bhavatvāṇyā vahnir atho nāseprāṇoto ghrāṇa etayoḥ

Translation:

First of all a mouth appeared in Him, and then came forth the organ of speech, and with it the god of fire, the deity who presides over that organ. Then a pair of nostrils appeared, and in them appeared the olfactory sense, as well as prāṇa, the vital air.

Purport:

With the manifestation of speech, fire also became manifested, and with the manifestation of nostrils the vital air, the breathing process and the sense of smell also became manifested.