Incorrectly known as the "Barber's Mosque", this mausoleum is in fact a zaouïa housing the tomb of Abu Dhama. This companion of Mohammed was nicknamed Sidi Sahab ("carrier of three hairs") as he was said always to carry with him hairs from the Prophet's beard. Built in the 7C, extended in the 17C and restored in the 18C-19C, this complex of rooms is decorated with magnificent ceramics from Nabeul and stucco panels in Spanish-Moorish style similar to those in the Alhambra in Granada.