Instagram today has announced the rollout of @mention Sharing, with this feature when someone mentions you in their story, you’ll be able to share that photo or video into your own story.
When someone mentions you in their story, you receive a notification in your Direct message thread with that person, and now you’ll see an option to add that content to your own story. You can tap it to see that story as a sticker and all the other editing options like scale, rotate and position it are available and add creative tools like text or stickers on to it as well.
When your followers see your story, the original poster’s username will appear, and they can tap to head over to their profile. Only public accounts can have their stories shared. The update is available on iOS and Android as part of Instagram version 48.