Narapatijayacarya 5.5.4

5.5.4

da. di. tha.jha. de. do. ṣu. ju. dha.pha. yu. nu.
du.ña bhu.ḍha.
śa. śi. śu. śe. śo. ṣi. ji. bhi. yi. ni.
ga. gi. gu. ge. go. ṣa. ja. bha. bha. na.
pañcasvarasamāyogādekaikaṃ pañcadhā kuru ||
kuryātṛkupubhudusthāne trīṇi trīṇyakṣarāṇi ca ||

da, di, tha-jha, de, do; ṣu, ju, dha-pha, yu, nu; / du-ña, bhu-ḍha; / śa, śi, śu, śe, śo; ṣi, ji, bhi, yi, ni; / ga, gi, gu, ge, go; ṣa, ja, bha, bha, na. / By combination with the five vowels, make each one fivefold; / and in the places of ku, pu, bhu, and du, one should make three letters each.