Strive to gain knowledge while you still can.

This hadith emphasizes the importance of knowledge and how it will decrease as the Last Hour approaches. It is a reminder to us that we should strive to gain knowledge while we still can, for it will be harder to come by in the future. We should also take care not to forget what we have already learned, so that our knowledge does not diminish over time. Additionally, this hadith serves as a warning that the end times are coming soon and that we must be prepared for them.