Since that time, no male had entered that forest. But now King Sudyumna, having been transformed into a female, began to walk with his associates from one forest to another.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तत ऊर्ध्वं वनं तद्वै पुरुषा वर्जयन्ति हि । सा चानुचरसंयुक्ता विचचार वनाद्वनम्
tata ūrdhvaṃ vanaṃ tadvai puruṣā varjayanti hi | sā cānucarasaṃyuktā vicacāra vanādvanam
SB 9.1.33