(6) باب تَحْرِيمِ الْخِطْبَةِ عَلَى خِطْبَةِ أَخِيهِ حَتَّى يَأْذَنَ أَوْ يَتْرُكَ
Ibn Umar (Allah be pleased with them) reported Allah's Apostle (ﷺ) as having said this:
None amongst you should outbid another in a transaction, nor should he make proposals of marriage upon the proposal made by someone else. (IT)
Reference (IT): Sahih Muslim 1412 a (IT)
In-book reference (IT): Book 16, Hadith 57 (IT)
USC-MSA web (English) reference(deprecated numbering scheme): Book 8, Hadith 3286 (IT)