If Allah decreed everything 50,000 years before creating the heavens and the earth, including human actions such as murder, theft, and adultery, then what is the recompense for a person for these actions?

The Companions asked the Messenger of Allah, may Allah bless him and grant him peace, about the utility of action after Allah's knowledge of their ultimate destinations. He replied to them: "Act, for everyone will be facilitated for that for which he was created," and he recited the verses from Surah Al-Layl. Imam An-Nawawi explained that these hadiths prohibit abandoning work and relying on destiny, for Allah has known eternally what His servants will do, but He has given them will, ability, and volition. Destiny is a secret among Allah's secrets, concealed from creation, and the way to know it is through definitive texts from the Qur'an and Sunnah.