Shiva Purana
दिग्गजानां च नागानां सेतुपानां च पूजनम् । त्र्यंबकस्य च रुद्रस्य विष्णोः पापहरस्य च ५८ ।
Worshipping the Dik-gajās (elephants of the directions), the Nāgas (serpents), the Setupānas (bridge builders), and also worshipping Triyambaka (Lord Shiva), Rudra, and Vishnu, who is the remover of sins, brings about great spiritual benefits.
english translation
diggajAnAM ca nAgAnAM setupAnAM ca pUjanam । tryaMbakasya ca rudrasya viSNoH pApaharasya ca 58 ।
hk transliteration by Sanscript