Musnad Ahmad

Shiyam bin Baytan says that Hazrat Muslamah bin Makhlad (may Allah be pleased with him) was appointed over the lowlands, and he entrusted a responsibility to Hazrat Ruwaifi’ bin Thabit (may Allah be pleased with him). So we traveled with him from “Shareek” to “Kawm Alqam.” Then Hazrat Ruwaifi’ (may Allah be pleased with him) said that during the blessed era of the Prophet (peace and blessings be upon him), we used to participate in jihad, and one of us would take a camel from another on the condition that he would give half of his share from the spoils of war to the owner of the she-camel. Sometimes, one of us would have only a spear, and another would have fruits and feathers. And the Prophet (peace and blessings be upon him) said to me, “O Ruwaifi’! It may be that you live a long life, so inform the people that whoever ties a knot in his beard, or hangs a string around his neck, or cleans himself with the dung or bone of an animal, then it is as if he has shown disassociation from the Shari’ah revealed to Muhammad (peace and blessings be upon him).”