Abu Rifa'a reported: I came to the Prophet ﷺ when he was delivering the sermon, and I said: Messenger of Allah, here is a stranger and he wants to learn about this religion and he does not know what this religion is. The Messenger of Allah ﷺ looked at me and left his sermon till he came to me, and he was given a chair and I thought that Its legs were made of iron. The Messenger of Allah ﷺ sat In it and he began to teach me what Allah had taught him. He then came (to the pulpit) for his sermon and completed it to the end.
The Prophet Muhammad ﷺ showed us how to do this by stopping his sermon and taking time out of his day to teach someone else about Islam. He did this without any hesitation or complaint which shows us how important it is for us to share knowledge with others in order for them to learn more about their faith too.