What do the sacred texts say about Delhi in relation to Sai Baba's life?

The provided source material from Chapter 18 makes no mention of Delhi. The focus is squarely on the sacred texts Baba revered and had read in Shirdi. The chapter identifies two main books: the Bhagavad Gita, specifically the commentary known as Jnaneshwari or Bhavartha Deepika, and the Nath Bhagawat. Chapter 18 describes a profound phenomenon where Baba would tell a short story, and when the listener was sent to the Wada to hear the reading, the very same story would appear in the text. This confirmed for devotees that Eknath's or Jnaneshwar's words were essentially a translation of Baba's own speech.