Shiva Purana
अव्यक्तांतरधिष्ठानं गर्भः पुरुष उच्यते । सुव्यक्तांतरधिष्ठानं गर्भः प्रकृतिरुच्यते ९६ ।
Puruṣa is of hidden latent conception and Prakṛti is of manifest inner conception.
english translation
avyaktAMtaradhiSThAnaM garbhaH puruSa ucyate । suvyaktAMtaradhiSThAnaM garbhaH prakRtirucyate 96 ।
hk transliteration by Sanscript