Final answer:
Muslims should be concerned about the record of deeds as the Qur'an, the divine book of Islam, contains God's direct guidance and will serve as the basis of judgment in the hereafter. The Hadith complements the Qur'an, and together they form the foundation of Islamic law, which influences a Muslim's day-to-day actions and spiritual fate.
Step-by-step explanation:
All Muslims should be concerned about the record of deeds contained in a divine book, specifically the Qur'an, because it is believed to be the direct word of God as recited by the Prophet Muhammad. The Qur'an, which Muslims hold as the final and complete revelation, includes guidance on how to lead a life that is pleasing to God. This divine text outlines the principles of right and wrong, and it serves as a basis for judgment on the Day of Resurrection. Therefore, Muslims strive to align their actions with the teachings of the Qur'an, as it will be a reference for their life's record and determine their final destiny in the hereafter.
The Hadith, another significant Islamic text, records the sayings and actions of the Prophet Muhammad and complements the Qur'an in guiding a Muslim's life. These records, along with the Qur'an, are instrumental in shaping the Sharia—a system of Islamic law that governs many aspects of daily life. Muslims believe that adherence to the teachings and commandments of the Qur'an and the examples set by the Prophet Muhammad will be reflected in their own record of deeds, which will be evaluated in the afterlife. Hence, every Muslim holds a personal responsibility to embody the divine instructions as a means of securing a favorable assessment in the hereafter.