Is working as a food delivery driver for a restaurant that cooks meat not slaughtered according to Islamic law permissible or forbidden, knowing that the restaurant owner is Muslim and confirms that the food is free of alcohol and pork, and that the jurisprudential schools differ on the ruling regarding eating the slaughtered animals of the People of the Book?

The ruling on meat in the lands of the People of the Book differs among contemporary scholars. Some consider it permissible unless it is known to have been slaughtered in an un-Shar'i manner, while others prohibit it unless its Shar'i slaughter is confirmed.

If the questioner works in delivering orders for a restaurant that serves such meats, there is no sin upon him according to those who permit it. However, the more pious and cautious approach is to avoid working in such restaurants, to steer clear of doubt.