The Assassination of Ahmad Ibn Sa'A

It seems to be this is taking place maybe 7th year or early 8th year of the Hijur. That the tribe of Banu-Aband ibn Saa-Saa-Aqams and they have this attempt. Most likely would have been a poison dagger or something because usually a dagger will not kill you. So, they had poison and they knew how to use it. And also, in Alibnib, Nabut-Tala, how was he killed? So, they knew howto put... Now, the CRB books don't mention this, but it is again my assumption. This is the point that just one poison and then the deed will