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.