Brahma Purana 229.63

Brahmapurāṇa 229.63

yadā na mokṣaty amarārihantā
tat kṣetramukhyaṃ mahad āptapuṇyam
tadā vimukteti surai rahasyaṃ
tīrthaṃ stutaṃ puṇyadam avyayākhyam