The Prophet Muhammad (peace be upon him) was asked what type of earning was best, and he replied: " A man's work with his hands and every (lawful) business transaction."
Muhammad ibn Isa at-TirmidhiThe Prophet Muhammad (s) said: "Do not turn away a poor man...even if all you can give is half a date. If you love the poor and bring them near you...God will bring you near Him on the Day of Resurrection."
Muhammad ibn Isa at-TirmidhiThe Prophet also said: "A truthful and trustworthy merchant is associated with the prophets."
Muhammad ibn Isa at-TirmidhiThe Prophet Muhammad (s) said: "Indeed, an ignorant man who is generous is dearer to God than a worshipper who is miserly."
Muhammad ibn Isa at-Tirmidhi