Sbg 6.3 etassa
English Translation of Abhinavgupta's Sanskrit Commentary By Dr. S. Sankaranarayan 6.3 Aruruksoh etc for a sage : For a man of wisdom. Action : that which reires to be performed. Cause (1st) : a means to attain. Quietude : to remain uninterrupted at the stage [already] achieved. Here Cause (2nd) is an indicator.
The same idea is made clear as-