महापातकयुक्तोऽपि स गच्छेत्परमां गतिम् । कार्त्तिक्यां कृत्तिकायोगे सरस्वत्यां निमज्जयेत्
mahāpātakayukto'pi sa gacchetparamāṃ gatim | kārttikyāṃ kṛttikāyoge sarasvatyāṃ nimajjayet
حتى من أثقلته الكبائر يبلغ المقام الأعلى، إذا في شهر كَارْتِّيكَا، عند الاقتران المبارك لكِرْتِّيكَا، غمر نفسه في نهر سَرَسْوَتِي.
Sūta (deduced: tīrtha-māhātmya enumeration)
Time (Kārttika) and sacred place (Sarasvatī) together magnify purification, making even grave karmic burdens removable through sincere practice.
The Sarasvatī river/tīrtha is praised, especially when approached in Kārttika at Kṛttikā-yoga.
Nimajjana—full immersion bath in Sarasvatī during Kārttika, specifically at Kṛttikā-yoga.