XVII. On the clench
THE clench is considered by all archers as one of the basic principles of archery. It consists in folding the little finger, the ring finger, and the middle finger tightly to the palm of the right hand, forming thereby a hollow duct, and concealing the nails completely. This is the method of Ṭāhir. Or you may fold them tightly without forming a hollow, though the first method is superior. It is said of abu-Hāshim that no one could ever see the little finger or ring finger when he was shooting, either from his right or from his left.