Sunan an-Nasa'i 4457
سنن النسائي#4457SahihIt was narrated that Hakim bin Hizam said:"The Messenger of Allah said: 'The two parties to a transaction have the choice so long as they have not separated. If they are honest and open, their transaction will be blessed, but if they tell lies and conceal anything, the blessing of their transaction will be lost
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 44:9