▁on ▁" S ā li h ▁Street ", ▁( 2 3 3 H ▁/ ▁ 8 3 7 - 8 CE ) ▁in ▁the ▁reign ▁of ▁the ▁Abb as id ▁cal i ph ▁Al - M u ' t as im ; ▁Among ▁his ▁teachers ▁were ▁Ab ū ▁H ā tim ▁as - S ij ist ā ni , ▁ar - R i ā sh i ▁( Ab ū ▁al - Fa ḍ l ▁al - ' A bb ā s ▁ibn ▁al - F ar aj ▁al - R iy ā sh ī )), ▁Abd ▁ar - R ah m ā n ▁I bn ▁Abd ▁Al lah , ▁s urn amed ▁nep hew ▁of ▁al - As m ā i ▁( I bn ▁Ak h ī ’ l ▁As m ā i ), ▁Ab ū ▁O thm ā n ▁Sa ī d ▁I bn ▁H ā r ū n ▁al - U sh n ā nd ā ni , ▁author ▁of ▁Kit ā b ▁al - Ma ā ni , ▁al - T aw w az ī , ▁and ▁al - Z iy ā di . ▁ ▁He ▁quoted ▁from ▁the ▁book ▁ ▁( Gest ures ▁of ▁Friend ship ▁of ▁the ▁Nob les ) ▁ ▁written ▁by ▁his ▁pat ernal ▁uncle ▁al - Ḥ as an ▁ibn ▁Mu ḥ amm ad . ▁▁▁▁▁▁▁ ▁When ▁Bas ra ▁was ▁attacked ▁by ▁the ▁Z an j ▁and ▁Ar - R i ā sh ī ▁murder ed ▁in ▁ 8 7 1 ▁he ▁fled ▁to ▁O