[1] Moreover, Al-Khisal is a great encyclopedia on Islamic knowledge and many authoritative works on Shi'ite traditions such as Bihar Al-Anwar have cited it as a reference.
Shaykh Saduq reports: Investigating in works of precedent man of religious sciences and Islamic sages, I found out that they wrote many books in different part of science but it was not written by them along with relations between numbers and good or bad characters alike.
[2] While a short book, Al-Khisal is nonetheless counted as a great encyclopedia for Islamic knowledge and forbidden, permissible judgment.
It refers also to historical, interpretative, philosophical points and political subjects in the preface, written by Sayyed Ahmad Fehri Zanjani.
[3][vague] Along with other books by Ibn Babawayh, Al-Khisal has been studied by jurists and theologians.[who?]