Based on the criteria in Chapter 48, what are some signs that a person might not be a true Sadguru?

Chapter 48 of the Shri Sai Satcharitra provides several indicators to identify those who do not meet the standard of a true Sadguru. The text explicitly states that wise men do not consider individuals Sadgurus merely for their scriptural knowledge, ability to explain Vedanta, or proficiency in practices like Pranayama. A major warning sign, as noted in this chapter, is a teacher who possesses vast verbal knowledge but has a 'total lack of self-experience,' making their teachings 'verbally hollow.' Chapter 48 also cautions against those who give out mantras but can offer no certainty about when the disciple will attain the fruits of their practice. Essentially, if a teacher's guidance is based on theory without direct, impartible experience, they should not be called a Sadguru.