Skanda Purana 5.101.27

5.101.27

ahamasminsvake setau śaṃkaratritayaṃ śubham ..
sthāpayiṣyāmi kīrtyarthaṃ tatpūjyaṃ bhavatā sadā ..
bhaktimānpratisaṃdhāya yāvaccaṃdrārkatārakam .. 27 ..

Upon this bridge of mine I will establish an auspicious triad of Śaṃkara / for the sake of fame; it must always be worshipped by you, / offering [worship] with devotion as long as the moon, sun, and stars endure.”