Pembantu wakil dilantik dan dipecat atas perintah Khalifah. Apabila Khalifah meninggal dunia, tempoh pembantu wakil tamat, dan mereka tidak lagi meneruskan jawatan mereka kecuali dalam tempoh amir sementara. Selepas tempoh ini, mereka memerlukan pembaharuan pelantikan mereka kepada peranan ini oleh Khalifah yang baharu supaya dapat meneruskan tugas mereka. Mereka tidak memerlukan keputusan pemecatan kerana kuasa mereka berakhir dengan kematian Khalifah yang melantik mereka sebagai pembantunya.

The delegate assistant is appointed and dismissed by the command of the Khalifah. At the death of the Khalifah, the term of the delegate assistants expire, and they do not continue in their post except during the term of the provisional amir. After this period they require renewal of their appointment to this role by the new Khalifah so as continue in their task. They do not need a decision of dismissal because their authority ceases with the death of the Khalifah that took them as his assistants.