While chest beating and face slapping are known ways of mourning by the Arabs, even predating Islam. The act of self flagellation using weapons (taṭbīr) for this purpose has no trace in Islamic history, the question then arises: What are the origins of this practice?
Thaqalayn
This is a short analysis regarding some claims regarding this supplication
In this article we shall look at the origin and reliability of this supplication
A short analysis on the book Al-Ikhtiṣāṣ and wether it is attributable to Shaykh al-Mufīd (d. 413 AH)
A brief look at the issue of Ilm ul-Ghayb from the works of the scholars of Baghdad and then focus on the views of the 20th century scholar Ayatullah Sālehi Najaf Ābādī, touching on his views and his efforts in attempting to reform and critique the status quo.
A short analysis of some of the narrations / opinions regarding this subject
Commentary by Shaykh Mohseni on the subject
This a translation of an article by Shaykh Abbas al-Musa
This is a translation of an article published by Ijtihad Network, which can be found here, translation by HESC
A short analysis regarding this book