Hazrat ‘Abdullah bin Abil Hamsaa (radhiyallahu ‘anhu) says, “Before the prophethood of Rasulullah (sallallahu ‘alaihi wasallam), I once engaged in a transaction with him. I owed Rasulullah (sallallahu ‘alaihi wasallam) some money, and so I promised him that I would return with it shortly. Coincidentally, after returning home, I completely forgot about my promise. Only three days later did I remember that I had promised to return with the money. The moment I remembered my promise, I went to the place where we had promised to meet and found him waiting there. All he said was, ‘You have inconvenienced me. I have been waiting here for you for the last three days.’”

Hazrat ‘Abdullah bin Saa’ib (radhiyallahu ‘anhu) says, “In the era of ignorance (pre-Islamic era), I was Rasulullah’s (sallallahu ‘alaihi wasallam) business partner. When I came to Madinah Munawwarah, he asked, ‘Do you recognize me?’ I replied, ‘Of course! You were my business partner and what an excellent partner you were. You would never procrastinate and delay nor would you argue over anything.’”

Hazrat Qays bin Saa’ib Makhzoomi (radhiyallahu ‘anhu) says, “I was Rasulullah’s (sallallahu ‘alaihi wasallam) business partner in the times of ignorance. He was the most excellent of partners. He would neither quarrel nor dispute.”

(Extracted from Seeratul Mustafa 1/95-96)