(96) باب الرَّجُلِ يَبِيعُ السِّلْعَةَ فَيَسْتَحِقُّهَا مُسْتَحِقٌّ
It was narrated from Sammurah that the Messenger of Allah said:
"If a woman is married off by two guardians, then the first marriage is the one that counts, and if a man sells something to two men, it belongs to the first one." (ID)
Reference (ID): Sunan an-Nasa'i 4682 (ID)
In-book reference (ID): Book 44, Hadith 234 (ID)
English translation (ID): Vol. 5, Book 44, Hadith 4686 (ID)