Matsya Purana — The Origin of Yajña in Tretā Yuga and the Debate on Animal Sacrifice vs. Non-...
एवं विवादः सुमहान् यज्ञस्यासीत्प्रवर्तने ऋषीणां देवतानां च पूर्वे स्वायम्भुवे ऽन्तरे //
evaṃ vivādaḥ sumahān yajñasyāsītpravartane ṛṣīṇāṃ devatānāṃ ca pūrve svāyambhuve 'ntare //
Thus, a very great dispute arose between the sages (ṛṣi) and the gods concerning the commencement of the sacrifice (yajña), in the former Svāyambhuva Manvantara.
This verse does not describe Pralaya directly; it situates events in the Svāyambhuva Manvantara and highlights how cosmic order is maintained through yajña, even amid conflict between divine and sage communities.
It underscores that yajña (sacrificial duty) is foundational to social and cosmic order; for kings and householders, supporting properly instituted rites and resolving disputes around dharma is implied as a key responsibility.
The ritual takeaway is the emphasis on the 'pravartana' (proper commencement) of yajña—suggesting that correct authorization, procedure, and agreement among officiants (ṛṣis) and divine recipients (devas) are essential for a sacrifice to be valid.