The Messenger of Allah ﷺ sent him with a Dinar to buy a sacrificial animal for him. He bought one for a Dinar, then sold it for two Dinars. He went back and bought a sacrificial animal for the Prophet ﷺ for one Dinar, and brought the other Dinar to the Prophet ﷺ. The Prophet ﷺ gave it away in charity and prayed that his trade be blessed.
حدثنا محمد بن كثير العبدي أخبرنا سفيان حدثني أبو حصين عن شيخ من أهل المدينة
أن رسول الله ﷺ بعث معه بدينار يشتري له أضحية فاشتراها بدينار وباعها بدينارين فرجع فاشترى له أضحية بدينار وجاء بدينار إلى النبي ﷺ فتصدق به النبي ﷺ ودعا له أن يبارك له في تجارته
No references are available.
[Its isnad is daif] Bayhaqi narrated it, 6/112, 113, from the hadith of Abu Dawud through the same route. The shaykh from the people of Madinah is unknown. Tirmidhi also narrated it, no. 1257, with a daif chain, from Abu Husayn, from Habib bin Abu Thabit, from Hakeem, through the same route.