Ikrimah bin Khalid (may Allah have mercy on him) says that I asked Sayyiduna Ibn Umar (may Allah be pleased with them both) about this issue: If a man wants to marry a woman outside Makkah Mukarramah and he also intends to perform Hajj or Umrah, what is the ruling? He replied: Do not marry in the state of Ihram; the Prophet (peace and blessings be upon him) has prohibited this.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5958
Hadith Gradingحکم دارالسلام:صحيح لغيره ، وهذا إسناد ضعيف لضعف أيوب بن عتبة.