Bulugh al-Maram, Book 6, Hadith 752 (English) ⓘ
'Uthman bin ’Affan (RAA) narrated that the Messenger of Allah said: “A Muhrim (one in the state of Ihram) must not contract marriage, nor help others contract marriage, nor get engaged to marry." Related by Muslim.
وَعَنْ عُثْمَانَ بْنِ عَفَّانَ - رضى الله عنه - أَنَّ رَسُولَ اَللَّهِ - صلى الله عليه وسلم -قَالَ: { لَا يَنْكِحُ اَلْمُحْرِمُ, وَلَا يُنْكِحُ, وَلَا يَخْطُبُ } رَوَاهُ مُسْلِمٌ 1. 1 - صحيح. رواه مسلم ( 1409 ).
also referenced under: Book 6, Hadith 26 (In-Book)