Which of the following statement (s) is /are NOT correct about Dharamsutras?

These are the texts written in Prakrit.

From c. sixth century BCE onwards, Brahmanas began composing Sanskrit texts known as the Dharmasutras. These laid down norms for rulers (as well as for other social categories), who were ideally expected to be Kshatriyas . Rulers were advised to collect taxes and tribute from cultivators, traders and artisans.