 Complete the following phrase:  Raja served as Sulaymans chief kātib secretary or scribe and head of the administration of justice. He is credited by the Mamluk historian Ibn Fadlallah al-Umari for advising Sulayman, while he was governor of Palestine, to select the site of Ramla as the new capital of Islamic Palestine, replacing nearby Lydda Lod. According to the traditional Muslim historians, Raja played an influential role in securing the succession of Sulaymans paternal cousin, the son of Abd al-Aziz ibn Marwan, Umar II, to the caliphate over expectations in the Umayyad ruling family that one of Sulaymans brothers or sons would accede. In the account of the historian al-Waqidi d. 823, while Sulayman was on his deathbed at his army camp in Dabiq during the 