The Prophet Muhammad (peace be upon him) had very little body hair.
According to descriptions found in Islamic traditions, the Prophet Muhammad (peace be upon him) was characterized by having minimal body hair. Specifically, accounts mention a small patch of hair on his chest and a line of hair extending from his chest down to his navel. His skin, particularly on his hands and feet, was described as being smoother than silk. It's also important to note that the Prophet (peace be upon him) was known for his natural, pleasant scent; his sweat was often compared to the fragrance of perfume.
In summary, while not completely hairless, the Prophet (peace be upon him) possessed significantly less body hair than is typical, with the most notable areas being a patch on his chest and a line leading to his navel.