▁ibn ▁Haw az in , ▁and ▁the ▁Ban u ▁Th a q if , ▁whose ▁pro gen itor ▁was ▁Q asi ▁ibn ▁Mun abb ih ▁ibn ▁Bak r ▁ibn ▁Haw az in . ▁However , ▁references ▁to ▁the ▁Haw az in ▁often ▁ex cluded ▁the ▁Ban u ▁' Am ir ▁and ▁Ban u ▁Th a q if , ▁and ▁was ▁limited ▁to ▁the ▁so - called ▁ ʿ uj z ▁Haw ā zin ▁( the ▁rear ▁of ▁Haw az in ). ▁The ▁latter ▁included ▁the ▁tribes ▁of ▁Ban u ▁J ush am , ▁Ban u ▁Nas r ▁and ▁Ban u ▁Sa ' d , ▁all ▁of ▁whose ▁found ers ▁were ▁sons ▁or ▁grands ons ▁of ▁Bak r ▁ibn ▁Haw az in . ▁The ▁Ban u ▁Sul ay m ▁was ▁divided ▁into ▁three ▁main ▁divisions , ▁Im ru ' ▁al - Q ays , ▁Har ith ▁and ▁Th a ' l aba . ▁ ▁Sa ' d ▁Sa ' d ' s ▁sons ▁A ' sur ▁and ▁Gh ata fan ▁each ▁bore ▁several ▁sub - t rib es . ▁The ▁largest ▁sub - t rib es ▁of ▁A ' sur ▁were ▁the ▁Ban u ▁Gh ani , ▁whose ▁founder ▁was ▁a ▁son ▁of ▁A ' sur , ▁and ▁the ▁Ban u ▁al - T uf awa , ▁which ▁consisted ▁of ▁the ▁descend ants ▁of ▁three ▁other ▁sons ▁of ▁A ' sur , ▁Th a ' l aba , ▁' Am ir ▁and ▁Mu ' aw i ya , ▁who ▁were ▁half - bro thers