Reference: Siyar A’laam an-Nubalaa – Volume 4, Page 207
Abu Khaldah said, I heard Abul-’Aaliyah say:
‘Abdul-Kareem Abu Umayyah visited me and he was wearing a garment of wool, so I said to him:
This is the clothing of the Monks; certainly, when the Muslims exchange visits with one another, they beautify themselves.
