nor does their assertion have any foundation.

If, however, the error arises from a sudden impairment in his body—such as a twisting of his hand, a momentary disturbance of his eyesight, or an illness that spoils his aim—it is not counted against him (1), unless the impairment can be traced to his own negligence in shooting; for example, if his hand twists because he does not know how to grip the bow properly (2), then the fault is charged to him.

Section
Likewise, every strike that is attributable to something other than the act of shooting itself is not credited to him. Thus, if the arrow hits a tree that stands off the line of the target, or a similar tree or wall, and then rebounds from the impact and strikes the target, that hit is not ascribed to his shot. It can, however, be argued that it should be counted for him, because the strike was generated by his shot; the Shāfiʿīs have two opinions on the matter. If the tree or wall is directly in line with the target, it is unquestionably credited to him, for the hit then results from sound marksmanship. But if the arrow travels correctly, strikes the ground, then bounces and hits the target, is that to be counted for him (3)?