 Qutb al-Din himself participated in a 1416 Timurid campaign to quell a rebellion in Kerman.In the meantime, trouble in Sistan arose Qutb al-Din's half-brother Najm al-Din Shah Mahmud Hajji demanded a share of power and threatened to revolt.When his appeal to Shah Rukh for support in this endeavor was denied, however, he backed down and decided to go to Arabia to participate in the Hajj.