Skanda Purana — Kashi Khanda, Shloka 60
अकालेप्यथवा काले तीर्थे श्राद्धं च तर्पणम् । अविलंबेन कर्तव्यं नैव विघ्नं समाचरेत्
akālepyathavā kāle tīrthe śrāddhaṃ ca tarpaṇam | avilaṃbena kartavyaṃ naiva vighnaṃ samācaret
无论时机不当或时机适当，在圣地渡口（tīrtha）都应不迟延地行施祖祭（śrāddha）与供水祭（tarpaṇa）；切莫招致或制造任何障碍。
Skanda (deduced, Kāśīkhaṇḍa context)
Tirtha: Tīrtha (general) within Kāśī teaching
Type: ghat
Scene: A pilgrim at a sacred ghat, sensing the fleeting opportunity, quickly arranges tarpaṇa and śrāddha with focused resolve; companions stand quietly to avoid disturbance; the river and temple spires witness the act.
FAQs
In sacred geography, opportunity itself is sanctifying—perform ancestral rites promptly at the tīrtha and avoid negligence.
The rule is taught in Kāśīkhaṇḍa, reflecting the tīrtha-primacy of Kāśī where śrāddha and tarpaṇa are especially efficacious.
At a tīrtha, do śrāddha and tarpaṇa immediately (even if not the ideal time), and do not introduce obstacles or delays.