«رَاحْ تُرُوحْ فِينِ الشَّمْسْ عَنْ قَفَا الْحَصَّادْ»

The saying pictures harvest workers bent over in open fields while the sun beats on the nape of their necks (قفا) all day. Here راح marks the future ('will'), not 'went': where will the sun go? The expected answer is 'nowhere'; its glare stays on the reaper while the work lasts.

In use, the image applies less to hardship than to anything that clings persistently to something else and cannot be shaken off: a constant companion, a recurring burden, or a close pairing. Just as the reaper cannot escape the sun, the person or thing in question will keep its attachment.

Say it wryly when one thing seems permanently attached to another, such as a nuisance that keeps following someone or a companion who never leaves their side. The rhetorical question implies that escape is pointless, so the tone suits resigned or teasing remarks.