How to implement through a handler (or whatever is more convenient) that the bot would catch a message from the user in a conversation and save it with Python Aiogram?

Question

Bots

How to implement through a handler (or as it is more convenient) that the bot would catch a message from the user in a conversation and save it (for example, to a txt file), so that later this message could be used to send by the bot itself? example situation:

user1: hello world!
User2: How's the world?

bot: saves messages from these users

bot: hello world! how is the world?