Is the beneficial knowledge that one benefits from after death restricted to Sharia knowledge, or does it include worldly sciences such as medicine and engineering?

The apparent meaning of the sacred texts is that a person benefits after their death from every useful knowledge they left behind, even if it is from worldly sciences that benefit people. Sheikh Ibn Uthaymeen mentioned that the Hadith (definition): "When a son of Adam dies, his deeds cease except for three: an ongoing charity, or knowledge from which benefit is gained..." is general and includes all knowledge from which benefit is gained, with religious knowledge being at its pinnacle. And that whoever teaches people a permissible craft and they benefit from it, he will receive a reward.