Maimunah bint Harith narrated: that the Messenger of Allah married her when he was Halal (not in Ihram). (Sahih).He (one of the narrators-Yazid) said: And she was my maternal aunt and the maternal aunt of Idn 'Abbas also.
It was narrated from Ibn 'Abbas that: the Prophet got married while he was a Muhrim (in Ihram).
It was narrated from Aban bin 'Uthman bin 'Affan' that his father said: The Messenger of Allah said: 'The one in lhram should not get married, nor arrange a marriage for anyone else, nor Propose marriage''