Will the supplication of one who does not pray be answered, and will the supplication of others for his guidance or worldly benefits be answered?

Allah may answer the supplication of one who abandons prayer, even if he is a disbeliever, just as He answers the supplication of a believer for guidance. The one who abandons prayer must repent and not rely on the supplication of others, for Allah has shown humanity the paths of good and evil and conveyed the proof to them by sending messengers.