  Similarly, he has left us a medium length pietistic work (Kalimat wajiza) and a much shorter version of the same treatise (Ithbāt al-mabdaʾ); but he also confides that he may expand upon the Kalimāt wajīza (Pourjavady &amp; Schmidtke 2006, 140). Even if that plan never came to fruition (no evidence of this longer version has as yet turned up), it indicates his conviction that important topics ought to be discussed in all three formats, which presumably take into consideration the varying abilities of people to devote time to study. The two extant pietistic texts are published (with no discussion of the contents) by Pourjavady &amp; Schmidtke 2006, 139–195. Langermann (2017) has published an annotated translation of the Ithbāt. These are discussed further below, in the penultimate section.