Hadith.3584 - The Messenger of Allah سبحانه وتعالى, peace and blessings be upon him and his family, said:
"Woe to the merchants of my nation because of (their frequent oaths) 'No, by Allah سبحانه وتعالى' and 'Yes, by Allah سبحانه وتعالى.' And woe to the craftsmen of my nation because of (their worries about) today and tomorrow."