Sahih
Muslim
صحيح مسلم
16
The Book of Marriage
كتاب النكاح
Chapter 6: The prohibition of proposing marriage when one's brother has already proposed, unless he gives permission or gives up the idea
باب تَحْرِيمِ الْخِطْبَةِ عَلَى خِطْبَةِ أَخِيهِ حَتَّى يَأْذَنَ أَوْ يَتْرُكَ
Sahih Muslim 1413 d
Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying
The Muslim should not purchase in opposition to his brother, and he should not make the proposal of marriage on the proposal already made by his brother.حَدَّثَنَا يَحْيَى بْنُ أَيُّوبَ، وَقُتَيْبَةُ، وَابْنُ، حُجْرٍ جَمِيعًا عَنْ إِسْمَاعِيلَ بْنِ جَعْفَرٍ، - قَالَ ابْنُ أَيُّوبَ حَدَّثَنَا إِسْمَاعِيلُ، - أَخْبَرَنِي الْعَلاَءُ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَسُمِ الْمُسْلِمُ عَلَى سَوْمِ أَخِيهِ وَلاَ يَخْطُبْ عَلَى خِطْبَتِهِ " .
Grade: Sahih