[1] Were it not for the fact that Mihzam is an actual person and one of the Imam’s companions—Mihzam al-Asadī—I would have translated this as “a pessimist” or “a defeatist,” because the « ه-ز-م » root has a semantic field relating to defeat, albeit of the military kind, but it would still work in this psychologically grounded eschatological and salvific context.

[2] Those who perform the supplication « اللّهمّ عجِّل لِوليكَ الفرج », which translates to: O’ Allāh, hasten the Deliverance of Your vicegerent!, are not the ones the Imam is condemning here. The supplication, by its very nature, is a plea to Allāh by virtue of having submitted to Him. The « المستعجلون » are those who call for the Deliverance to be hastened by virtue of not having submitted to Allāh in this regard, either by rejecting the very existence of the Mahdī outright (in much the same way as the disbelievers are addressed in the Qurʾān at a more general level during the Prophet’s life), or by indulging in skepticism as a consequence of despair and pessimism, without relying on Allāh.