Is it permissible to purchase pig manure for use as organic fertilizer in agriculture?

The majority of scholars prohibit the sale of excrement from animals whose meat is impermissible to eat, while the Hanafis permit it. The majority based their prohibition on the argument that it is impure, and therefore its sale is not permissible, similar to carrion or human excrement. Scholars have not differentiated between pigs and other animals whose meat is impermissible to eat regarding the issue of sale. Accordingly, it is not permissible to purchase pig manure for use as fertilizer or for any other purpose.