Police want to speak to the man in the image and a driver, who parked up moments before the man in the image appeared on screen.
The robbery took place about 90 minutes earlier at 11.30pm at the 55-year-old’s bungalow in Spring Farm, Trowell Moor.
He suffered a fractured ankle after three burglars attacked him as he entered the property.
Cash and a shotgun were stolen.
Two of the suspects were described as black men, wearing dark clothing with their faces covered.
One was shorter and stockier than the other.
Det Sgt Tara Clapperton said: “Were you this motorist?
“Did you see the man at the cash machine? If so, please get in touch.”
Anyone with any information about the robbery or the man in the CCTV image should call Nottinghamshire Police on 101, quoting incident 1033 of May 11.
Alternatively call Crimestoppers anonymously on 0800 555 111.