Narada Purana — Purva Bhaga, Shloka 16
Tithi-Nirṇaya for Vratas: Ekādaśī Rules, Saṅkrānti Punya-kāla, Eclipse Observances, and Prāyaścitta
मैत्रेण संयुता ज्येष्टा संतानादिविनाशिनी । ततः स्युस्तिथयः पुण्याः कर्मानुष्टानतो दिवा ॥ १६ ॥
maitreṇa saṃyutā jyeṣṭā saṃtānādivināśinī | tataḥ syustithayaḥ puṇyāḥ karmānuṣṭānato divā || 16 ||
ジェーシュター（宿）がマイトレ（吉祥なるヨーガ／結合）と相合するとき、子孫への害などの苦患を滅する。ゆえに、その後に続くティティ（月日）は、昼間に定められた行法を修するに功徳あるものとなる。
Narada (teaching the Sanatkumara tradition on calendrics and auspicious timings)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: karuna
FAQs
It links cosmic timing (tithi–nakṣatra combinations) with dharmic outcomes, teaching that properly chosen auspicious time supports the fruit of sacred action and removes obstacles such as afflictions related to progeny.
While primarily a Jyotiṣa-based instruction, it supports bhakti indirectly by emphasizing disciplined, timely performance of devotional and Vedic rites—actions that stabilize sādhana and help remove impediments to worship.
Vedāṅga Jyotiṣa: using nakṣatra (Jyeṣṭhā) and tithi-based considerations to determine when daytime ritual performance (karma-anuṣṭhāna) is especially auspicious.