तपश्चकार सुमहत्तस्मिंस्तीर्थवरे तदा । कुशस्तम्बेन कृतवांस्तत्सरो विपुलं विभुः
tapaścakāra sumahattasmiṃstīrthavare tadā | kuśastambena kṛtavāṃstatsaro vipulaṃ vibhuḥ
ثمّ في ذلك التيرثا الفاضل أتى بتقشّفات عظيمة جدًّا؛ وذلك الجليل ذو القدرة أنشأ هناك بحيرةً واسعةً بوساطة حزمةٍ من عشب الكوشا.
Sūta (Lomaharṣaṇa) to the sages (deduced)
Tirtha: Viśvāmitreśvara-saras / associated tīrtha (implied)
Type: kund
Scene: At an excellent tīrtha, the powerful sage performs intense austerities; with a clump of kuśa grass he causes a broad lake to appear, waters spreading across the earth as devas marvel.
Tapas sanctifies geography; through austerity and ritual means, sacred spaces (like lakes and shrines) arise for the welfare of future pilgrims.
The tīrtha of Adhyāya 44 where a large saras (lake) is formed and later associated with Viśvāmitreśvara worship.
Tapas (austerity) is highlighted; the use of kuśa (ritually pure grass) indicates sanctified ritual action in creating/marking the tīrtha.