Shah-i Shahan spent a significant amount of time accompanying Timur on the latter's campaigns. He participated in the capture of Aleppo in 1400 and was present during Timur's campaign against the Ottoman Turks. While away from Sistan, Shah-i Shahan would have his brother-in-law Shams al-Din Shah 'Ali govern in his stead; when Shams al-Din Shah 'Ali died his son Qutb al-Din Muhammad was given that responsibility.