(20) باب بَيْعِ الرَّجُلِ عَلَى بَيْعِ أَخِيهِ
It was narrated from Ibn 'Umar that the Messenger of Allah said:
"Do not urge someone to cancel a sale he has already agreed upon so as to sell him your own goods, unless he bys or changes his mind."
Reference: Sunan an-Nasa'i 4504
In-book reference: Book 44, Hadith 56
English translation: Vol. 5, Book 44, Hadith 4508