Islamic custom at the time was that the chief Islamic spiritual leader, the Grand Mufti of Jerusalem, was to be chosen by the temporal ruler, the Ottoman Sultan in Constantinople, from a group of clerics nominated by the indigenous clerics. After the British conquered Palestine, Samuel chose Haj Amin al Husseini, who later proved a thorn in the side of the British administration in Palestine. At the same time, he enjoyed the respect of the Jewish community, and he was honoured by being called to the Torah at the Hurva synagogue in the Old City of Jerusalem.