Agnipurana 357.7

357.7

uttama i vahi mahi bhūvādyā dhātavaḥ smṛtāḥ /
bhuviredhiḥ pacirnandirdhvaṃsiḥ śraṃsiḥ padistvadiḥ //

iṭ, vahi, mahi are the highest. The roots are remembered as bhū and the rest: / bhū, edh, pac, nand, dhvaṃs, bhraṃś, pad, and vad;