Ca, Vim., 8, 125.2 tatra saṃvatsaro dvidhā tridhā ṣoḍhā dvādaśadhā bhūyaścāpyataḥ pravibhajyate tattatkāryamabhisamīkṣya /

Ca, Vim., 8, 125.3 atra khalu tāvat ṣoḍhā pravibhajya kāryam upadekṣyate hemanto grīṣmo varṣāśceti śītoṣṇavarṣalakṣaṇāstraya ṛtavo bhavanti teṣāmantareṣvitare sādhāraṇalakṣaṇāstraya ṛtavaḥ prāvṛṭśaradvasantā iti /