Umm al-Mu’minin Aisha Siddiqa (may Allah be pleased with her) says that one day the Messenger of Allah (peace and blessings be upon him) came to me and he was happy, and he said:“O Aisha! Did you not see that Mujazziz al-Mudliji came to me and saw Usama and Zaid, and both of them were covered with a sheet in such a way that their heads were covered and their feet were exposed? So he said: ‘These feet are part of each other (i.e., one is the father and the other is the son).’”