Rusūkh is firmness and secure establishment; in knowledge, it is verified mastery not displaced by doubt.
In ʿAllāmah Ṭabāṭabāʾī’s Works
Risālat al-Manāmāt wa-l-Nubuwwāt
rooted firmness — explanation
Repeated arrival explicitly produces rootedness and difficulty of removal, through increased attention to a cognitive form.
Limits of this account
It does not explicitly posit a four-stage sequence of repetition, habituation, rootedness, and settled disposition.
al-Mīzān fī Tafsīr al-Qurʾān
rooted firmness — definition and use
In commentary on Āl ʿImrān 3:7, rusūkh is the utmost firmness: those firmly rooted in knowledge have stable knowledge of God and His signs, free from doubt, and the ambiguous does not unsettle that knowledge.
Limits of this account
It does not establish the Chapter 4 causal account in which repeated arrival makes a cognitive form hard to remove, reduces deliberation, and yields habitus; nor does it identify that account with the Qurʾānic role of the firmly rooted.
Read in context
Open a passage in the edition where this term is linked.