What is the ruling on fruits and vegetables imported from countries that use mixed fertilizers, including pig manure? Does this affect the produce and necessitate refraining from buying it? And how can one verify that imported fertilizer is free from pig products?

It is permissible to fertilize crops with impure fertilizers, such as animal dung, human waste, and parts of dead animals. This is the view of the majority of scholars, because the impurity transforms into pure nourishment that the plant feeds on, and this does not affect the fruits and crops in their color, smell, or taste. Anything that has come into contact with impurities must be washed before eating. It is forbidden to use fertilizer if it is harmful, and in this matter, the reference is to specialists.