Bismillah.
Narrated Said bin Jubair:
Ibn 'Umar (radiallaahu `anhu) used to oil his hair. I told that to Ibrahim who said, "What do you think about this statement: Narrated Aswad from 'Aisha (radiallaahu `anhaa): As if I were now observing the glitter of the scent in the parting of the hair of the Prophet (sallallaahu `alayhi wasallam) while he was Muhrim?"
Narrated 'Aisha (radiallaahu `anhaa):
(the wife of the Prophet (sallallaahu `alayhi wasallam)) I used to scent Allah's Apostle (sallallaahu `alayhi wasallam) when he wanted to assume Ihram and also on finishing Ihram before the Tawaf round the Ka'ba (Tawaf-al-ifada).
Narrated Salim from his father:
I heard that Allah's Apostle (sallallaahu `alayhi wasallam) assumed Ihram with his hair matted together.
Narrated Salim bin 'Abdullah :
I heard my father saying, "Never did Allah's Apostle (sallallaahu `alayhi wasallam) assume Ihram except at the Mosque, that is, at the Mosque of Dhul-Hulaifa.
Narrated 'Abdullah bin 'Umar (radiallaahu `anhu):
A man asked, "O Allah's Apostle (sallallaahu `alayhi wasallam)! What kind of clothes should a Muhrim wear?" Allah's Apostle (sallallaahu `alayhi wasallam) replied, "He should not wear a shirt, a turban, trousers, a headcloak or leather socks except if he can find no slippers, he then may wear leather socks after cutting off what might cover the ankles. And he should not wear clothes which are scented with saffron or Wars (kinds of Perfumes) . "
- Putting on perfume before Ihraam is a Sunnah (for men).
- It's better to assume Ihraam at the miqaat. One may do it before as well.
- Clothes of a muhrim must not include shirts/turbans/trousers/head-cloak.
- Leather socks (below ankles) may be worn.
Taken from: http://ilookilisten.wordpress.com/2013/01/12/hajj-ihraam-apparant-ahadith-1311-1315/
