This essay is a review of Al-Wasyah by Isa Ibni al-Mustafad Abi Musa al-Bajli (died in 220 H.). The original version of this book is not available to us but there are some quotations from it in authorized Shiite books. The editor of the book has reconstructed and published it based 36 traditions quoted from it in such books as Kafi, Sirat al-Mustaqim and the like.
)