Is expiation (kaffarah) obligatory for a driver whose front left tire exploded, causing the car to overturn and one of the passengers to die, especially since one of the passengers had alerted him to a sound in the tire, and the driver indicated the necessity of changing it, but someone more knowledgeable about cars deemed it unnecessary?

The rulings concerning traffic accidents depend on the driver's error or negligence. If either is found, the driver is liable; otherwise, they are not. Applying this requires experts and knowledge of details, such as inspecting tires and driving speed. If the cause of the accident was error or negligence, the driver is obligated to offer expiation: freeing a believing slave, or fasting for two consecutive months if a slave is not available.