Shloka 45
Āśrama-dharma: Duties of the Four Life-Stages (आश्रमधर्मः)
नास्य यज्ञकृतो देवा ईहन्ते नेतरे जना: । ततः सर्वेषु वर्णेषु श्रद्धायज्ञो विधीयते
nāsya yajñakṛto devā īhante netare janāḥ | tataḥ sarveṣu varṇeṣu śraddhāyajño vidhīyate |
毗湿摩说：不行祭者之祭，诸天不求其分，人亦不然。故于一切诸姓，皆教令以信敬（śraddhā）为本之祭：盖以至诚信敬而行之仪，最为清净，能招致天与人之参与与善意。是以，行信敬为主之内祭，其权属诸姓皆同。
भीष्म उवाच
Educational Q&A
That the true sanctity of yajña lies in śraddhā (reverent, sincere intention). A faith-centered sacrifice is supremely purifying and is therefore prescribed for all varṇas, emphasizing inner disposition over mere external ritual.
In Śānti Parva, Bhīṣma instructs Yudhiṣṭhira on dharma after the war. Here he explains why sacrifices rooted in śraddhā attract divine and human participation and why such a form of yajña is universally applicable across social orders.