ज्येष्ठ-कनिष्ठ-धर्मः — Duties of Elders and Juniors
Anuśāsana-parva 108
नक्तं न कुर्यात् पित्र्याणि भुक्त्वा चैव प्रसाधनम्
naktaṁ na kuryāt pitryāṇi bhuktvā caiva prasādhanam
भीष्म ने कहा—रात्रि में पितृकर्म नहीं करना चाहिए; और भोजन करने के बाद प्रसाधन अथवा शौच-शुद्धि के लिए कर्मकाण्डीय तैयारी भी नहीं करनी चाहिए।
भीष्म उवाच
Ritual acts—especially ancestral rites—must be performed at proper times and in a state of appropriate purity; night-time performance and post-meal ritual preparation are discouraged as contrary to prescribed discipline.
In Anuśāsana Parva, Bhishma instructs Yudhishthira on dharma and correct conduct, giving practical rules about śrāddha/Pitṛ-related observances and standards of cleanliness and timing.