Sarvarthacintamani 35.12

Sarvārthacintāmaṇi 35.12

dīrghāyuṣolpamadhyaṃ tu pūrṇāyustrividhaṃ bhavet || evaṃ navavidhaḥ proktaścāyuṣāṃ tu vinirṇayaḥ