The 
indication is written in A on the border of the bottom stave (at the height of the motif in the L.H.), as a result of which in GE (→FE→EE) it was assigned to the L.H. and placed under the bottom stave. According to us, it does not correspond to Chopin's intention and – in spite of a somewhat misleading placement – refers to the parts of both hands.
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: Inaccuracies in GE
notation: Verbal indications