Hazrat Wahb bin Kaysan (may Allah have mercy on him) says that I heard Hazrat Jabir bin Abdullah (may Allah be pleased with him) saying that in the year of unity, Hazrat Muawiyah (may Allah be pleased with him) sent Hazrat Busr bin Artat (may Allah have mercy on him) to Madinah Munawwarah so that he could take allegiance from the people of Madinah according to their banners and tribes. So, on the day when it was the turn for the Ansar to come to him, the Banu Salamah came to him. He asked, "Is Hazrat Jabir (may Allah be pleased with him) among these people?" The people replied, "No." He said, "Go back, I will not take allegiance from them until Hazrat Jabir is among them." Hazrat Jabir (may Allah be pleased with him) says that those people came to me and said, "We beseech you in the name of Allah to come with us and pledge allegiance so that your and our blood may be protected, because if you do not do so, our fighting men will be killed and our children will be taken captive." Hazrat Jabir (may Allah be pleased with him) says that I asked them for respite until the night. When night fell, I went to Hazrat Umm Salamah, the wife of the Prophet صلی اللہ علیہ وسلم , and told her the whole matter. She said, "O my nephew! Go and pledge allegiance and protect your and your people’s blood, for I have also ordered my nephew to pledge allegiance."