Charak Samhita
कृतं मृद्दण्डचक्रैश्च कुम्भकारादृते घटम्। कृतं मृत्तृणकाष्ठैश्च गृहकाराद्विना गृहम् ॥४३॥
In support of the causativity of Purusha, author has given few practical examples of world where existence of karta (doer) becomes mandatory.
english translation
kRtaM mRddaNDacakraizca kumbhakArAdRte ghaTam। kRtaM mRttRNakASThaizca gRhakArAdvinA gRham ॥43॥
hk transliteration by Sanscript