I was not able to find it anywhere online, but in my search I did find the English title, Summa of Penitential Cases, and when I pursued that, I found a broken link brynmawr.edu/Library/Mss/GordanMS95.html to Bryn Mawr College’s library.
So if you really want to pursue it, you could contact Bryn Mawr and ask for their library:
Bryn Mawr College
101 North Merion Ave
Bryn Mawr PA 19010-2899
Tel 610-526-5000
If they have it, perhaps your local library could get it on interlibrary loan.
Also note that his name is sometimes spelled Raymond of Peñafort (or Raimundo de Penafort).
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