Passage: Amer, or Amber, derives its name from the Ambikeshwar Temple, built atop the Cheel ka Teela. Ambikashwara is a local name for the god Shiva.  However, local folklore suggests that the fort derives its name from Amba, the Mother Goddess Durga.

Question: Which source suggests that Ambikeshwar Temple was named for the Mother Goddess Durga?
local folklore