Padmapurana 1.50.201

Padmapurāṇa 1.50.201

śrībhagavānuvācadinaikaṃmāsapakṣauvāpakṣārdhaṃvāthavatsaraṃ
pitrorbhaktiḥkṛtāyenasacagacchenmamālayaṃ