Abu al-Husayn Haytham says that I and a friend of mine used to stay close to Abu Rayhanah and acquire knowledge from him. One day my companion reached the mosque, but I could not. Later, my companion told me that he heard Sayyiduna Abu Rayhanah (may Allah be pleased with him) saying that the Prophet (peace and blessings be upon him) forbade ten things: filing the teeth, tattooing the body, plucking hair, a man drinking from the same vessel with another man without any barrier, a woman drinking from the same vessel with another woman without any barrier, attaching silk in the form of embroidery to the lower part of the garment, wearing silk garments on the shoulders like non-Arabs, looting, riding on saddles made from the skins of leopards, and wearing a ring for anyone other than a ruler.