diff --git a/src/requests/sessions.py b/src/requests/sessions.py
index 7d34b29f5a..578cc44d5c 100644
--- a/src/requests/sessions.py
+++ b/src/requests/sessions.py
@@ -422,6 +422,8 @@ def __init__(self):
         #: expired certificates, which will make your application vulnerable to
         #: man-in-the-middle (MitM) attacks.
         #: Only set this to `False` for testing.
+        #: If verify is set to a string, it must be the path to a CA bundle file
+        #: that will be used to verify the TLS certificate.
         self.verify = True
 
         #: SSL client certificate default, if String, path to ssl client