(20) باب النَّهْىِ أَنْ يَخْطُبَ الرَّجُلُ عَلَى خِطْبَةِ أَخِيهِ .
It was narrated from Abu Hurairah that the Prophet said:
"None of you should propose marriage to a woman when someone else has already proposed to her." (JA)
Reference (JA): Sunan an-Nasa'i 3242 (JA)
In-book reference (JA): Book 26, Hadith 47 (JA)
English translation (JA): Vol. 4, Book 26, Hadith 3244 (JA)