Matsya Purana 184.22

184.22

ekatra caturo māsān māsau vā nivaset punaḥ.
avimukte praviṣṭānāṃ vihārastu na vidyate .. 184.22 ..

The Brâhmaṇas worshipping the sun have attained the position of Devas in this place Those who remain firm in their devotion to Śiva and die at this Avimukta-tîrtha, attain emancipation Those who reside there for eight months and subdue their passions or stay there even for four months in sexual abstinence, also attain emancipation—20-24