Preserve knowledge, Pass on knowledge from generation to generation, Have reliable sources for transmitting information.

This hadith is about the teachings of 'Ali, which were passed down through a chain of transmitters. The teachings were shared from one person to another in order to ensure that they were preserved and remembered. This hadith emphasizes the importance of preserving knowledge and passing it on from generation to generation. It also highlights the importance of having reliable sources for transmitting information so that it can be trusted and relied upon. By doing this, we can ensure that our knowledge is accurate and up-to-date.