The incident happened at around 6.30pm on Thursday 6 September in Noel Street, Hyson Green.
A man aged between 30 and 35-years-old approached the boy and his mother.
Nottinghamshire Police have released a CCTV image of a man they want to speak to in connection with the incident.
More top news
Guns Village Primary School in West Bromwich has announced plans to change its name after a numbers of shootings in the region.
The Brexit decision has unleashed “a tidal wave of racial abuse and attacks”, a Birmingham MP warned last night.
A consultation begins today on how Leicester's Golden Mile could look if a proposed revamp is given the go-ahead.