Hadith 790:55
Isma'il narrated to us, Yazid—meaning al-Rashk—narrated to us, from Mutarrif ibn al-Shikhkhir, from 'Imran ibn Husayn, who said: A man said: "O Messenger of Allah, is it known who are the people of Paradise from the people of the Fire?" He said: "Yes." He said: "Then for what do the workers work?" He said: "Work, for everyone is facilitated [for what they were created for]," or as he said.
حدثنا إسماعيل، حدثنا يزيد يعني الرشك، عن مطرف بن الشخير، عن عمران بن حصين قال: قال رجل: يا رسول الله أعلم أهل الجنة من أهل النار؟ قال: نعم. قال: فيم يعمل العاملون؟ قال: " اعملوا فكل ميسر " أو كما قال