The Prophet ﷺ said that Allah said, "I am as My servant thinks of Me, and I am with him whenever he remembers Me."
حدثنا روح حدثنا زهير بن محمد حدثنا زيد بن أسلم عن أبي صالح
عن النبي ﷺ قال الله عز وجل أنا عند ظن عبدي بي وأنا معه حيث يذكرني
Its isnad is sahih. It appears previously at (8163, 10202).