Shloka 44
प्रतिग्रहभेदः — The Distinction between Giving and Accepting
Vṛṣādarbhī–Saptarṣi Dialogue
संकीर्णयोनिर्विप्रश्न॒ सम्बन्धी पतितश्न यः । वर्जनीया बुधैरेते निवापे समुपस्थिते
saṅkīrṇayonir vipraśna-sambandhī patitaś ca yaḥ | varjanīyā budhair ete nivāpe samupasthite ||
毗湿摩说道：“出身杂乱者、与‘vipraśna’（违犯或扰乱婆罗门秩序者）相连之亲属，以及凡从正行堕落之人——当施行施罗陀供献（nivāpa/piṇḍadāna）之时，智者皆当将其排除在外。”
भीष्म उवाच
Educational Q&A
That śrāddha (ancestral offering) should be conducted with careful attention to ritual boundaries; those classified as ritually fallen or socially/ritually disruptive are to be kept away at the time of the offering.
In Anuśāsana Parva, Bhīṣma instructs Yudhiṣṭhira on dharma, including detailed conduct for śrāddha. Here he lists categories of persons whom the learned tradition considers to be excluded when the nivāpa/piṇḍa offering is about to be made.