Simuyah says: I came to the Prophet (peace and blessings be upon him) and heard from his (peace and blessings be upon him) own mouth with my own ears. We had brought wheat from al-Balqa' to Madinah; we sold it and wanted to buy the dates of Madinah, but the people stopped us. So we came to the Prophet (peace and blessings be upon him) and told him (peace and blessings be upon him), and the Prophet (peace and blessings be upon him) said to those people who had stopped us: "Is it not enough for you that this grain comes to you cheaply, in exchange for these costly dates which they are taking away? Leave them, so that they may take them." Simuyah was a Christian deacon from al-Balqa'; then he accepted Islam and his Islam was excellent, and he lived for one hundred and twenty years.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6695