Shloka 21
अनुशासनपर्व अध्याय ९३ — तपस्, सदोपवास, विघसाशन, अतिथिप्रियता
Austerity, regulated fasting, residual-eating, and hospitality
ध्वानश्न पंक्तिदूषाश्न नावेक्षेरनू कथंचन । तस्मात् परिसृते दद्यात् तिलांश्वान्ववकीरयेत्
dhvānaśnapaṅktidūṣāśnān nāvekṣer anū kathañcana | tasmāt parisṛte dadyāt tilān śvān avakīrayet ||
毗湿摩说道：“当使犬类与那些败坏丧祭食列的婆罗门，无论如何都不得以目光触及施行的施罗陀（śrāddha）。因此，应在四周严密围护之处行供献，并于周遭撒布芝麻，以驱避其扰，护持仪式不受玷污。”
भीष्म उवाच
Educational Q&A
Śrāddha should be protected from ritual defilement: the performer must prevent improper onlookers or disruptive/impure participants from affecting the rite, and should take practical measures (enclosure, scattering sesame) to safeguard its sanctity.
In Bhīṣma’s instruction on dharma, he gives a procedural rule for conducting śrāddha: perform the offering in a secluded/enclosed spot so that dogs and ‘line-spoilers’ do not see it, and scatter sesame seeds around as a protective measure.