What is the ruling on money earned from cleaning the synagogue courtyard for Jews for three days, and is this money considered unlawful?

It is not permissible to work in cleaning the Western Wall plaza, as this involves aiding in sin and transgression. If it is established that this work is forbidden, then the wages paid for it are also forbidden. It is not permissible to benefit from this money; rather, it must be disposed of by spending it on charitable causes, such as giving it to the poor and needy with the intention of getting rid of unlawful money.