This hadith is about the transmission of a tradition from one person to another, specifically from 'Ali b. Abi Talib ('علي بن أبي طالب). It emphasizes the importance of passing down knowledge and traditions from one generation to another, as it helps preserve culture and values for future generations. It also highlights the importance of having reliable narrators who can accurately transmit information without any distortion or alteration. Furthermore, it encourages people to be mindful when transmitting information and ensure that they are not adding their own interpretations or opinions into it.