Abu Abdullah Imam Jafar ibn Muhammad Al-Sadiq عليه السلام was asked about a forearm (the arm below the elbow) that was struck and resulted in the fracture of the wrist bone. Imam عليه السلام replied: If the hand becomes paralyzed or all the fingers of the hand become immobile due to the injury, then two-thirds of the blood money (diyyah) of the entire hand is applicable. Imam عليه السلام further stated: If only some of the fingers become paralyzed while others remain functional, then for each finger that becomes paralyzed, two-thirds of its individual diyyah is applicable. The same ruling applies to the leg and foot if the toes of the foot become paralyzed.