Manasara 55.27

55.27

mātrāṅgulaṃ tataḥ proktamaṅgulaṃ trividhaṃ bhavet
caturviṃśaccaturbhāgaṃ mūlaberodayaṃ bhavet

and then the bodily digit is mentioned: the digit is of three kinds. / The height of the principal image is divided into twenty-four or four parts;