al-Mughira bin Maqsam المغيرة بن مقسم · The Book on Business

"The truthful, trustworthy merchant is with the Prophets, the truthful, and the martyrs." This Hadith is Hasan, we do not know it except from this route, a narration of Ath-Thawri from Abu Hamzah. Abu Hamzah's name is 'Abdullah bin Jabir, and he is a Shaikh from Al-Basrah.