 alzubayr bin bakkar said a cousin of dawud bin yazid almahlabi came to him and prevented him from meeting his needs. so he wrote to him
الزبير بن بكار قال وقد ابن عم لداود بن يزيد المهلبي عليه فحجبه، وجعل يمطله بحاجته، فكتب إليه