There is nothing in this report stating that Imam عليه السلام received that (zakat) for himself or for someone else. It is possible that Imam عليه السلام only received that for someone else from among those who were entitled to it, as the Imams عليه السلام, used to receive the zakats, request them, and distribute them among their mawali from among those who were entitled to that. That which indicates this is what he narrated (in the following hadith):