It was narrated from Ibn Umar that:
the Messenger of Allah said: "A man should not propose to a woman to whom his brother has already proposed."
حَدَّثَنَا يَحْيَى بْنُ حَكِيمٍ، حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ، عَنْ عُبَيْدِ اللَّهِ بْنِ عُمَرَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ
" لاَ يَخْطُبِ الرَّجُلُ عَلَى خِطْبَةِ أَخِيهِ "
.
