Matsya Purana — Vrata-Ṣaṣṭhī: The Sixty Sacred Vows
*नन्दिकेश्वर उवाच अथातः सम्प्रवक्ष्यामि व्रतषष्ठीमनुत्तमाम् रुद्रेणाभिहितां दिव्यां महापातकनाशनम् //
*nandikeśvara uvāca athātaḥ sampravakṣyāmi vrataṣaṣṭhīmanuttamām rudreṇābhihitāṃ divyāṃ mahāpātakanāśanam //
Nandikeśvara said: Now I shall fully expound the unsurpassed observance called Vrata-Ṣaṣṭhī—a divine vow taught by Rudra, which destroys even the gravest sins.
This verse does not address creation or Pralaya; it introduces a ritual vow (Vrata-Ṣaṣṭhī) described as a powerful purifier of major sins.
It frames vrata-practice as a central duty within dharma: householders (and rulers) can pursue moral restoration and religious merit through prescribed vows, especially those said to remove mahāpātakas.
The significance is ritual rather than architectural: it announces a specific sacred observance (Vrata-Ṣaṣṭhī), credited to Rudra, emphasized as a formal means of purification and expiation.