Skandapurana 6.3.84.24

6.3.84.24

sthāpayāmāsaturliṅge tau tadā rāmalakṣmaṇau .
prabhāvātsatyatapaso revātīre mahāmatī .
niṣpāpatāṃ tadā vīrau jagmatū rāmalakṣmaṇau .. 84.24 ..

Then both of them, Rāma and Lakṣmaṇa, installed liṅgas. / By the power of their true austerity on the bank of the Revā, those two wise heroes, / Rāma and Lakṣmaṇa, then attained sinlessness.