وصاحب هذه الصناعة إن قابل الحكيم يسمى سوفسطائيا
If the practitioner confronts a philosopher, he is called a sophist.
The book distinguishes safsaṭah (sophistry) from mushāghabah (wrangling) by the context of confrontation. An intellectual-looking false argument directed at a philosopher receives the first label; comparable contentious deception in another setting receives the second.
These are technical names for forms of disputation, not an invitation to label every modern interlocutor. The aim is to identify unsound reasoning.