▁a ▁Rah ba - bound ▁car avan ▁from ▁Bag hd ad ▁in ▁which ▁Al ▁Mu h anna ▁tribes men ▁lo oted ▁all ▁of ▁its ▁mer ch and ise . ▁Isa ▁was ▁replaced ▁by ▁his ▁brother ▁Say f ▁in ▁ 1 3 4 3 , ▁after ▁which ▁Mu h anna ' s ▁son ▁F ay y ad ▁defeated ▁Say f ▁in ▁battle ▁and ▁seized ▁ 2 0 , 0 0 0 ▁of ▁his ▁cam els . ▁A hm ad ▁ibn ▁Mu h anna , ▁who ▁had ▁been ▁imprison ed ▁in ▁ 1 3 4 2 , ▁was ▁re app oint ed ▁am ir ▁al - ʿ arab ▁in ▁ 1 3 4 5 , ▁and ▁was ▁succeeded ▁two ▁years ▁later ▁by ▁F ay y ad . ▁ ▁F ay y ad ▁died ▁shortly ▁after ▁his ▁appointment ▁and ▁replaced ▁by ▁his ▁brother ▁Hay ar . ▁For ▁the ▁next ▁thirty ▁years , ▁Hay ar ▁re bel led ▁and ▁recon ci led ▁with ▁the ▁Mam lu ks ▁and ▁during ▁times ▁of ▁re bell ion ▁he ▁was ▁often ▁replaced ▁by ▁his ▁brother ▁Z amil ▁and ▁cousin ▁Mu ' ay q il ▁ibn ▁F ad l ; ▁sometimes ▁the ▁latter ▁two ▁ruled ▁joint ly . ▁In ▁ 1 3 8 0 , ▁Hay ar ' s ▁son ▁Nu ' ay r ▁was ▁appointed ▁am ir ▁al - ʿ arab . ▁He ▁was ▁dismiss ed ▁several ▁times ▁for ▁revol ting ▁against ▁the ▁s ultan ' s ▁authority ▁by ▁supporting ▁re bel ▁govern ors ▁in ▁Sy ria . ▁His ▁last ▁reign