The pilgrimage to the Sacred House of Allah — for those who are able to make the journey — is a pillar of Islam and one of its great rituals. The Prophet (peace and blessings of Allah be upon him) taught us its pillars and how to enter Ihram for it, and clarified what is permissible for the pilgrim in Ihram to do and what is not permissible.This Hadith clarifies the Prophet's (peace and blessings of Allah be upon him) guidance regarding Ihram, where `A’ishah (may Allah be pleased with her) says: "It is as if I am looking at the gleam of musk," meaning: its shine and luster, "in the parting of the hair of the Messenger of Allah (peace and blessings of Allah be upon him)," meaning: in the place where the hair parts on the Prophet's (peace and blessings of Allah be upon him) head, "while he was in Ihram." The Prophet (peace and blessings of Allah be upon him) would apply it just before he begins his Ihram, and its trace would remain on his head after entering Ihram. However, perfuming the Ihram garment and applying perfume after entering Ihram and during the rituals is prohibited, as it is among the prohibitions of Ihram. Whoever perfumes his garment must wash it until he cleanses it and removes the perfume from it..