My problem is trying to get original posted msg but noting function related this

Bcz I want to get msg text with id or specific text and then I also append my new text to the original posted msg.
I have serched about this proble but found nothing solution about this problem.

And also I think,you should add get recation update when user react msg ,we got user id and msg id and other related data bcz
I found MessageReactionUpdated