Astanga Hrudaya
समधातोरिदं मानं विद्याद्वृद्धिक्षयावतः। ॥८२॥
these are the measures when they are normal and on these (measure) the increase and decrease (of dhatu and others) have to be understood.
english translation
samadhAtoridaM mAnaM vidyAdvRddhikSayAvataH। ॥82॥
hk transliteration by Sanscript