Is man predestined or free in terms of fear and courage, and what is the authenticity of the statement that Hassan ibn Thabit was a coward?

Morals are changeable and capable of refinement. If they were not open to change, then admonitions would be rendered void, just as changing the nature of animals is possible. Among existing things, some are perfect, and humans have no say in their origin and details. Others were created imperfectly, but were given the capacity to attain perfection through the servant's choice. Humans are both predestined and given free will at the same time. They are predestined in their actions, which are the execution of universal, fated commands, and they are given free will because they were granted intellect and senses to distinguish between what is beneficial and what is harmful. The reports regarding the cowardice of the Companion Hassan ibn Thabit have been rejected by some scholars, and the Permanent Committee has clarified that mentioning the virtues of the Companions takes precedence over mentioning their faults. Fear does not diminish a servant's faith.