Musnad Abu Ya'la al-Mawsili 6:70

Abu Bakr ibn Abi Shaybah narrated to us, Bakr ibn Abd al-Rahman narrated to us, Isa ibn al-Mukhtar narrated to us, from Abd al-Karim, from Mujahid, from Amir ibn Sa’d ibn Malik, from Sa’d ibn Malik: That he proposed to a woman in Makkah while he was with the Messenger of Allah (peace and blessings of Allah be upon him). He said, "I wish I had someone who could see her and inform me about her." A man called Hit said, "I will describe her to you: when she approaches, you would say she walks on six, and when she turns away, you would say she walks on four." The Messenger of Allah (peace and blessings of Allah be upon him) said to me, "I see this as something reprehensible; I see that he knows the affairs of women." He used to enter upon Sawdah, so he (the Prophet) forbade him from entering upon her. When he (the Prophet) arrived in Madinah, he banished him. He remained like that until the rule of Umar, when he became exhausted. He would then be permitted to enter Madinah on Friday to be given charity.