Śrīmad-Bhāgavatam · Text 12.6.43
Who is speaking and story frame
ततोऽक्षरसमाम्नायमसृजद् भगवानज: ।
अन्तस्थोष्मस्वरस्पर्शह्रस्वदीर्घादिलक्षणम् ॥ ४३ ॥
tato ’kṣara-samāmnāyam
asṛjad bhagavān ajaḥ
antasthoṣma-svara-sparśa-
hrasva-dīrghādi-lakṣaṇam
From that oṁkāra Lord Brahmā created all the sounds of the alphabet — the vowels, consonants, semivowels, sibilants and others — distinguished by such features as long and short measure.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.
From Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.