@menachem-shmei There is no such רשב״א, there is no such רא”ש
How are you so sure? Did you check up the sources in the link I posted?
My earlier post was written quickly, without checking anything up.
Now I looked into this a little.
The Rashba writes clearly that לא תסור applies to chachomim of all times:
https://hebrewbooks.org/pdfpager.aspx?req=19563&st=&pgnum=171&hilite=
(שכב)
There is no specific source for תשובות הרא”ש, so it was hard to find, but maybe it was referring to here:
https://www.hebrewbooks.org/pdfpager.aspx?req=1961&st=&pgnum=64
(סי’ ח-ט)
[Happens to be FIERY teshuvos!]
and there is no ראשון by the name of ספר זכרונות.
Correct, I shouldn’t have written “many Rishonim”. That was my mistake (not from the sicha I was quoting).
Sefer Zichronos is by R’ Shmuel Abuhav (1600s). Here’s what it says:
https://beta.hebrewbooks.org/reader/reader.aspx?sfid=32266#p=5&fitMode=fitwidth&hlts=&ocr=