Skanda Purana — Prabhasa Khanda, Shloka 128
कुर्वते यदि मोहाद्वा प्रेतत्वं शाश्वतं ततः । नापयाति कृतैः पुण्यैर्बहुशस्तीर्थसेवनैः
kurvate yadi mohādvā pretatvaṃ śāśvataṃ tataḥ | nāpayāti kṛtaiḥ puṇyairbahuśastīrthasevanaiḥ
もし迷いによってこれを誤って行えば、そこから永くプレータ（餓鬼）の境涯が生じる。それは積んだ功徳や、多くのティールタ（聖地）への度重なる奉仕によっても、容易には消え去らない。
Sūta (deduced)
Tirtha: Dvārakā (contextual)
Type: kshetra
Scene: A devotee, having performed a rite wrongly, is shown in a liminal preta-like state near a desolate shore; in contrast, a correctly guided ritual scene appears as a luminous counterpoint, emphasizing the need for right knowledge.
FAQs
Deliberate or careless ritual error is treated as grave; spiritual consequences may persist beyond ordinary acts of merit.
Tīrtha-sevā is mentioned generally; the surrounding narrative belongs to Dvārakā Māhātmya.
An implicit prohibition: do not perform the rite in the wrong tithi/condition, thinking it will be ‘fixed’ later by pilgrimages.