371-372)Husain Ibn Ruh Nawbakhti was.

371-372)Husain Ibn Ruh Nawbakhti was. one of the agents of Muhammed ibn Usman in Baghdad. He had been working closely with him for a long time. These agents used to be in contact with the people and when ordered they handed over the goods to them (Gaibat-e-Tusi Pg. 369/372). Husain ibn Ruh died in Shaban 326 A.H (Ghaibat-e-Tusi Pg. 387).The last safir was Abul Hasan Ali Ibn Mohammed Seymoori. He became the deputy of Imam Mahdi (A.S.) according to the will of Husain ibn Ruh.