Skandapurana 16.35.113

16.35.113

dṛṣṭamātrāḥ punaṃtyete tasmātpaśyeddhi bhāvitaḥ ..
agnitīrthe naraḥ snātvā pāvake prakṣipettataḥ ..
guggulaṃ bhārasahitaṃ sogniloke mahīyate .. 113 ..

These purify as soon as they are seen; therefore, full of devotion, one should behold them. / Having bathed in Agnitīrtha, a man should then throw into the fire / Bdellium resin weighing a bhāra; he is glorified in the world of Agni.