Skanda Purana — Mahesvara Khanda, Shloka 95
एतत्स्वल्पं हि वाणिज्यं पुनर्बहुफलप्रदम् । जीर्णोद्धारे च द्विगुणमेतदेव प्रकीर्तितम्
etatsvalpaṃ hi vāṇijyaṃ punarbahuphalapradam | jīrṇoddhāre ca dviguṇametadeva prakīrtitam
此种“功德之交易”虽费力甚少，却能结得广大福果；而在修复破败失修之处时，同样的功德被宣说为加倍。
Sārasvata (as reported in the narrative context of Adhyāya 2)
Scene: Workers and devotees restore a crumbling shrine and clean a silted pond; scaffolding, fresh plaster, reinstalled lamps; the community rejoices as worship resumes—merit shown as doubled radiance.
FAQs
Even modest giving becomes immensely fruitful, and restoring decayed sacred works is praised as especially powerful.
No specific site is named; the teaching applies broadly to sacred repairs and religious endowments.
Jīrṇoddhāra—repairing and renovating old sacred structures—is recommended, with merit described as doubled.