Another time, and he did not say "from Ibn Umar."
مرة أخرى ولم يقل عن ابن عمر
Its chain of transmission is mursal, because Muammal bin Ismail narrated it this time from Umar bin Muhammad from his father, without mentioning Ibn Umar in it.But this mursal quality does not affect the soundness of the hadith, it is to be understood in light of the connected version. A narrator may sometimes narrate a hadith as connected and sometimes as mursal, as is well known.The hadith is established as connected through the narration of Asim bin Muhammad, his brother, as we indicated earlier in the previous chain of transmission.