It was narrated that Jabir bin' Abdullah said:
"The Messenger of Allah (ﷺ) bought a load of fodder from a Bedouin man. When the transaction was concluded, the Messenger of Allah (ﷺ) said: 'Choose (either to go ahead or to cancel the transaction).' The Bedouin said: 'May Allah grant you a long life of good transaction!"'
English reference: Vol. 3, Book 12, Hadith 2184
Arabic reference: Book 12, Hadith 2268