Arabic (Original)
حَدَّثَنَا ابْنُ نُمَيْرٍ وَمُحَمَّدُ بْنُ عُبَيْدٍ قَالَا حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا يَخْطُبُ أَحَدُكُمْ عَلَى خِطْبَةِ أَخِيهِ وَلَا يَبِيعُ عَلَى بَيْعِ أَخِيهِ إِلَّا بِإِذْنِهِ.
English Translation
Ibn Numayr and Muhammad ibn Ubayd told us, they said: Ubaydullah told us, from Nafi', from Ibn Umar: that the Messenger of Allah, peace and blessings be upon him, said: "None of you should propose marriage over the proposal of his brother, nor sell over the sale of his brother, except with his permission."