Matsya Purana — Agastya’s Origin
*ईश्वर उवाच एवमस्त्विति ते ऽप्युक्त्वा जग्मुर्देवा यथागतम् तस्मादर्घः प्रदातव्यो ह्य् अगस्त्यस्य सदा बुधैः //
*īśvara uvāca evamastviti te 'pyuktvā jagmurdevā yathāgatam tasmādarghaḥ pradātavyo hy agastyasya sadā budhaiḥ //
Īśvara said: “So be it.” Having thus spoken, those gods departed just as they had come. Therefore, the wise should always offer arghya (a respectful water-offering) to Sage Agastya.
This verse does not discuss pralaya directly; it emphasizes dharmic conduct—honoring a great sage (Agastya) through the ritual arghya offering.
It frames a general dharma: the wise (including kings and householders) should consistently show reverence to rishis. Offering arghya is a simple, daily/occasional act of respect that supports righteous living and social-religious order.
The ritual point is explicit: arghya (a respectful water-offering) should be given to Agastya. It signals the Matsya Purana’s broader emphasis on correct pūjā-vidhi and honoring spiritual authorities.