Hi @Miha Rejec ,
When you look at Bing.com/maps you will see attribution in the lower right hand corner. The license information for Bing Maps APIs includes attribution requirements as documented here https://www.microsoft.com/en-us/maps/product.
Specifically for print rights refer to the subsection https://www.microsoft.com/en-us/maps/product/print-rights which clarifies the copyright given in the answer must be included or if you are showing the resulting point on the Bing Maps Control, the attribution must not be removed or obscured.
If you want further clarification, I recommend reaching out to the Maps Licensing team at MapLic@Microsoft.com.
Sincerely, IoTGirl