Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that I heard the Messenger of Allah (peace be upon him) reciting the Talbiyah while having a coating on his head. Wahb narrates that I asked Imam Malik (may Allah have mercy on him), "With what should a Muhrim apply a coating on his head?" He replied, "With gum and khatmi (a blue flower used as medicine)."