वसन्तो हिंकारो ग्रीष्मः प्रस्तावो वर्षा उद्गीथः शरत्प्रतिहारो हेमन्तो निधनमेतद्वैराजमृतुषु प्रोतम् ॥ २.१६.१ ॥
In plain words
Spring is the hiṃkāra, summer the prastāva, the rains the udgītha, autumn the pratihāra, winter the nidhana. This is the Vairāja chant woven upon the seasons.
The commentators
Chāndogyopaniṣadbhāṣyam· bhāṣya
वसन्तो हिङ्कार, प्राथम्यात् । ग्रीष्म प्रस्ताव इत्यादि पूर्ववत् ॥
In plain words
Spring is the hiṃkāra because it comes first. Summer is the prastāva, and the rest is to be understood as before.
Close to the Sanskrit
Spring is the hiṃkāra, from priority. Summer is the prastāva, and so forth as before.