Narada Purana — Purva Bhaga, Shloka 153
Graha–Ketu–Utpāta Lakṣaṇas: Solar/Lunar Omens, Comets, Eclipses, and Calendar Rules
गजच्छाया तदा ज्ञेया श्राद्धे ह्यत्यंतपुण्यदा । एकस्मिन्वासरे तिस्रस्तिथयः स्यात्तिथिक्षयः ॥ १५३ ॥
gajacchāyā tadā jñeyā śrāddhe hyatyaṃtapuṇyadā | ekasminvāsare tisrastithayaḥ syāttithikṣayaḥ || 153 ||
その時には、吉祥なる「ガジャ・チャーヤー」（gaja-chāyā、象の影）の時刻を識別すべきである。シュラーダにおいては、これがきわめて大いなる功徳となる。もし一日のうちに三つのティティ（太陰日）が現れるなら、それは「ティティ・クシャヤ」（tithi-kṣaya、ティティの欠落）と呼ばれる。
Sanatkumara (teaching Narada in Moksha-Dharma context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
FAQs
It links śrāddha’s spiritual efficacy to correct kāla (ritual timing), teaching that recognizing special time-markers like gajacchāyā and understanding tithi-kṣaya safeguards the rite’s intended merit for the Pitṛs.
Though focused on śrāddha, it supports bhakti through disciplined dharma: careful observance and sincerity in offerings to ancestors is presented as a sacred duty that harmonizes one’s life with cosmic order, a foundation for steady devotional practice.
Jyotiṣa (Vedāṅga astrology/astronomy): it defines tithi-kṣaya (when three tithis occur in one day) and indicates the need to identify specific auspicious time windows (like gajacchāyā) for śrāddha performance.