Shiva Purana
चतुर्दशस्वरोपेतं बिन्दुनादविभूषितम् ॥ एतद्बीजवरं भद्रे पद्ममध्ये समालिखेत्॥ १९ ॥
It is composed of fourteen notes and is decorated with the sound of dots This best seed should be written in the middle of the lotus, O auspicious one.
english translation
caturdazasvaropetaM bindunAdavibhUSitam ॥ etadbIjavaraM bhadre padmamadhye samAlikhet॥ 19 ॥
hk transliteration by Sanscript