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.
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Staying dry with plenty of warm sunny spells.
Another dry day with sunny periods, becoming locally very warm.
Around 70 people were taken away and offered support.