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Regarding the Chassidic text written in 1840 entiled Pri Yitzchak that details all 613 Mitzvot and the corresponding 248 limbs for positive mitzvot and 365 sinews for negative commandments.

My Rabbi (Rebbe Douglas) is searching for this rare book and I am also searching to help find it for him. I found your comments relating to this book and would like to ask if anyone determined where the book can be purchased or borrowed from - is it online anywhere? I would deeply appreciate help in locating this for him.

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related judaism.stackexchange.com/a/12001/759 – Double AA Jul 15 '12 at 3:02
Peggy Shapiro, welcome to Mi Yodeya, and thanks very much for bringing your question here! Please consider registering your account, which will give you access to more of the site's features. – Isaac Moses Jul 15 '12 at 3:20
Who is Rebbe Douglas? (chat.stackexchange.com/transcript/message/5367002#5367002) – Adam Mosheh Jul 15 '12 at 20:13
@AdamMosheh vessels? – msh210 Jul 15 '12 at 21:22
@AdamMosheh a גיד is a tendon or sinew. – Double AA Jul 16 '12 at 6:02

You can find the entire text first forty pages online here, and then need to pay in order to download the rest. You don't need to register in order to get rid of that annoying pop-up: just click to enter the site as a guest. As you can see, the full title is פרי יצחק: כולל ביאור תרי"ג מצות ברמז, and the author is Rabbi Yitzhak ben Tzvi Hirsch. It was first printed in Vilna, 1834.

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the entire text Not true: הנך מורשה לעיין ב-40 דפים ראשונים בלבד! (There are only 60 pages in total, though.) – b a Jul 15 '12 at 5:15
My bad - sorry. But if the person who asked the question (or her rabbi) is happy to pay the fee that they request, the entire text can be subsequently downloaded. – Shimon bM Jul 15 '12 at 5:19
see here for a short writeup of the sefer: judaism.stackexchange.com/a/12001/603 – Menachem Jul 16 '12 at 0:10

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