Kauṣītaki Upaniṣad 2.7.1

2.7.1

namupatiṣṭheta samityādimantreṇa, saṃ samyagarthaḥ | vyākhyātamanyat | evaṃ trivāramādityasyārghyaṃ kurvataḥ phalamāha yatprasiddhaṃ dṛṣṭaphalamahorātrābhyāṃ ahani rātrau ca pāpaṃ karoti spaṣṭaṃ, saṃ tadṛṅkte tadaśāstrīyaṃ karma phalataḥ saṃvṛṅkte samyak parityajati pāpaphalaṃ na prāpnotītyarthaḥ | ekamidamupāsanaṃ karmātmakaṃ | idānīṃ dvitīyamāha, atha pūrvasmāt karmarūpādupāsanāt prakṛtādarthādagnirūpādādityādanantaraṃ karmarūpamupāsanāntaramādityasya bāhyaprāṇasya suṣumṇānāḍīrūpasomātmakaṃ māsi māsi pratimāsamabhyāsavalādāsaṃvatsaramiti niścīyate, amāvāsyāyāṃ amākhyaraṇo somasya nivāsadivase paścāccandramasamādityasya paścimabhāge suṣumṇākhye raśmau vartamānaṃ somaṃ dṛśyamānaṃ śāstrato'valokyamānamupatiṣṭheta vargeāddhargasaṃvargamantraiḥ udaye madhyāhne astamaye ca upasthānaṃ kuryāt, etayaiva yajñopavītamityādikayaiva na tvanyayā āvṛtā prakāreṇa | amāvāsyāyāṃ