Chandogya Upanishad (with commentary) · Chapter 2.5

ChUpBh_2,4.2 na hāpsu praiti /
necchati cet /
apsumānaṃmānbhavati phalam //2//
iti chāndogyopaniṣadi dvitīyādhyāyasya caturthaḥ khaṇḍaḥ
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START ChUp 2,5.1
ṛtuṣu pañcavidhaṃ sāmopāsīta |
vasanto hiṅkāraḥ |
grīṣmaḥ prastāvaḥ |
varṣā udgīthaḥ |
śarat pratihāraḥ |
hemanto nidhanam

ChUpBh_2,5.1 ṝtuṣu pañcavidhaṃ sāmopāsīta /
ṝtuvyavasthāyā yathoktāmbunimittatvādānantaryam /
vasanto hiṅkāraḥ /
prāthamyāt /
grīṣmaḥ prastāvaḥ /
yavādisaṃgrahaḥ prastūyate hi prāvṛḍartham /
varṣā udgīthaḥ prādhānyāt /
śaratpratihāraḥ /
rogiṇāṃ mṛtānāṃ ca pratiharaṇāt /
hemanto nidhanam /
nivāte nidhanātprāṇinām //1 //
START ChUp 2,5.2
kalpante hāsmā ṛtava ṛtumān bhavati ya etad evaṃ vidvān ṛtuṣu pañcavidhaṃ sāmopāste