Sunan Ibn Majah
2289
Very Daif+3

lt was narrated from Salih bin Suhaib that his father said:"The Messenger of Allah (ﷺ) said: 'There are three things in which there is blessing: A sale with deferred payment; Muqaradhah (profit sharing); and mixing wheat with barley for one's house, but not for sale

Very DaifAl-Albani
Very DaifMuhammad Fouad Abd al-Baqi