▁al - M ut ah har ▁bin ▁Y ah ya ▁( J une ▁ 1 2 1 7 ▁– ▁June ▁ 2 3 , ▁ 1 2 9 8 ) ▁was ▁an ▁im am ▁of ▁the ▁Za idi ▁state ▁in ▁Y emen ▁whose ▁im am ate ▁last ed ▁from ▁ 1 2 7 6 ▁to ▁ 1 2 9 8 . ▁ ▁In ternal ▁Za idi ▁rival ries ▁When ▁the ▁old ▁im am ▁al - M ah di ▁I bra him ▁was ▁defeated ▁and ▁captured ▁by ▁the ▁Ras ul id ▁s ultan , ▁the ▁Za idi ▁el ite ▁of ▁the ▁northern ▁Y em eni ▁high land ▁asked ▁the ▁ex - im am ▁al - Has an ▁bin ▁W ah has ▁to ▁succeed . ▁When ▁al - Has an ▁refused , ▁the ▁offer ▁went ▁to ▁al - M ut ah har ▁bin ▁Y ah ya ▁bin ▁al - M urt ada , ▁a ▁desc endant ▁of ▁the ▁im am ▁an - N as ir ▁A hm ad ▁( d . ▁ 9 3 4 ). ▁He ▁accepted ▁and ▁took ▁the ▁honor ific ▁name ▁al - M ut aw ak kil ▁al - M ut ah har . ▁The ▁strong est ▁political ▁figure ▁in ▁the ▁Za idi ▁lands ▁was , ▁however , ▁the ▁em ir ▁Sar im ▁ad - D in ▁Da ' ud , ▁son ▁of ▁a ▁former ▁im am , ▁who ▁was ▁the ▁leader ▁of ▁the ▁Ham z ite ▁Sh ar ifs . ▁In ▁ 1 2 8 4 , ▁Sar im ▁ad