Skandapurana 6.3.51.26

6.3.51.26

viśeṣāccaitramāsānte tasya puṇyaphalaṃ śṛṇu .
kedāre caiva yatpuṇyaṃ gaṅgāsāgarasaṅgame .. 51.26 ..

especially at the end of the month of Caitra—hear the meritorious fruit of that:
Whatever merit is gained at Kedāra and at the confluence of the Gaṅgā and the ocean,