Sunan Abu Dawud
468
Sahih+3

This tradition has been narrated by Abu Qatadah through a different chain of transmitters to the same effect from the prophet (ﷺ). This version adds:then he may remain sitting (after praying two RAKAHS) or may go for his work

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid