الآس
An aromatic evergreen shrub referenced in secondary Prophetic-medicine texts for its cleansing scent and mild topical use.
مَنْ أُهْدِيَ إِلَيْهِ رَيْحَانٌ فَلَا يَرُدَّهُ
“Whoever is offered a fragrant plant [as a gift] should not refuse it.” (meaning, not a literal translation)
Al-Dhahabi and later writers describe myrtle as cooling and mildly antiseptic, historically used in washes for minor skin irritation and as a hair rinse.