وَلَا يَغْسِلَ رَأْسَهُ، وَلَا لِحْيَتَهُ بِالْخِطْمِيِّ.
Translation: And the pilgrim must not wash the head or beard with khiṭmī.
Khiṭmī was a plant-based cleansing substance. Washing the head or beard with it has a separate classical legal treatment, including its effect on hair, and should not be equated with plain-water washing.
This qualifies the earlier bathing permission: cleanliness is allowed, while particular cleansing agents remain restricted.