[Avodah] Who First Said it?

[Zev Sero]

The repetition of zecher/zeicher definitely goes back further than the
MB.  The Toras Chesed, who was the Lubliber Rov from 1868 to 1892,
once remarked "zecher, zeicher, abi opmeken" (so long as we erase);
this shows that the repetition was customary in his day.

-- 
Zev Sero                      The trouble with socialism is that you
zev at sero.name                 eventually run out of other people’s money
                                                     - Margaret Thatcher