Is buying a bus to transport tourists and work with it Haram or Halal?

Originally, it is permissible to buy a car and use it for transportation and other purposes, so long as it does not involve anything forbidden by Sharia. However, if working with it entails something unlawful, such as transporting tourists to forbidden places, then it is not permissible. This is because it constitutes aiding in sin and exposing oneself to Allah's wrath. Allah Almighty says: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression." And among the Sharia principles is that "Whatever leads to the unlawful is unlawful."