Bhagavatapurana 5.17.15

5.17.15

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ilāvṛte tu bhagavān bhava eka eva pumān na hy anyas tatrāparo nirviśati bhavānyāḥ śāpa-nimitta-jño yat-pravekṣyataḥ strī-bhāvas tat paścād vakṣyāmi //

15. But in the continent of Ilavrita the only one male that is present is the worshipful God Siva; and no other who knows of the curse of Siva's consort enters it; for he who would enter it is turned into a woman—on this subject I shall speak later on.