Muhammad Sabbar al-Mutawkkil Partial Pledge Reference Number: NMEC-2007-658057 Categories: IraqForeign FightersIslamic State & Predecessor Groups Share via: Original English This document is part of an unspecified pledge. It appears to be the second page continuation of the pledge. It is signed by an individual by the name of Muhammad Sabbar al-Mutawkkil using the alias Abu Yasir.