Śrāddha-prayoga: Niyama, Brāhmaṇa-parīkṣā, Kutapa-kāla, Tithi-nyāya, and Vaiṣṇava-phala
क्षयाहस्य तिथैर्विप्र यदि दंडमितिर्भवेत् । विद्धापराह्णि कायां तु श्राद्धं कार्यं विजानता ॥ २६ ॥
kṣayāhasya tithairvipra yadi daṃḍamitirbhavet | viddhāparāhṇi kāyāṃ tu śrāddhaṃ kāryaṃ vijānatā || 26 ||
Hỡi brāhmaṇa, nếu vào ngày kṣayāha (ngày mất tithi) mà các tithi chỉ còn kéo dài bằng một daṇḍa, thì người hiểu luật phải cử hành śrāddha vào buổi chiều, trong phần viddhā (bị chồng lấn).
Sanatkumara (teaching Narada on śrāddha timing rules)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It stresses that ancestral rites (śrāddha) must be aligned with precise sacred time (kāla); correct timing safeguards the rite’s efficacy and honors the pitṛs according to dharma.
Indirectly: by teaching careful, faithful observance of dharmic rites, it cultivates śraddhā (reverent trust) and disciplined devotion—foundational attitudes that support Vishnu-bhakti in the Purāṇic worldview.
Jyotiṣa (Vedāṅga astrology/kalā-nirṇaya): deciding ritual timing using tithi behavior (kṣaya), aparāhṇa (afternoon window), and viddhā (overlap) considerations, including very short ‘daṇḍa’-length tithis.