Skanda Purana — Kashi Khanda, Shloka 78
खरोष्ट्रक्रोष्ट्र विरुते समवाये रुदत्यपि । उपाकर्मणि चोत्सर्गे नाविमार्गे तरौ जले
kharoṣṭrakroṣṭra virute samavāye rudatyapi | upākarmaṇi cotsarge nāvimārge tarau jale
驢や駱駝のいななきが聞こえるとき、騒がしい混乱や泣き声さえ起こるとき、またウパーカルマン（Upākarman）とウツサルガ（Utsarga）の儀礼の時、舟路にあるとき、木の上にいるとき、水中にあるとき——これらは聖なる学習を中止すべき時である。
Skanda
Tirtha: Gaṅgā-ghāṭas of Kāśī (implied)
Type: ghat
Scene: A student pauses recitation as a noisy street/ghat scene unfolds—animals bray, people bustle, someone weeps; a boat waits at the ghat, signaling travel as a liminal state unsuitable for study.
FAQs
Sacred recitation requires mental steadiness and ritual propriety; disruptive settings and transitional rites call for restraint.
The broader setting is Kāśī, where dharma for residents and pilgrims is taught as part of Kāśī-māhātmya.
Upākarman and Utsarga are explicitly named as times connected with Vedic discipline, implying a regulated schedule for study/recitation.