Shivapurana 7.2.11.21

Śivapurāṇa (complete text) 7.2.11.21

atha bhartṛvihīnāyā vakṣye dharmaṃ sanātanam |
vrataṃ dānaṃ tapaḥ śaucaṃ bhūśayyānaktabhojanam ||