|The Dome of the Rock, Jerusalem|
The Dome of the Rock (Arabic:, translit.: Qubbat As-Sakhrah, translit.: Kipat Hasela, Turkish: Kubbetüs Sahra) is a notable Islamic shrine for pilgrimage in what Muslims call masjid al-Aqsa or the Noble Sanctuary (al-Haram al-Qudsi al-Sharif) — which Jews and Christians call Har ha-Bayit or the Temple Mount — it remains one of the best known landmarks of Jerusalem. It was built between 687 and 691 by the 9th Caliph, Abd al-Malik. It is often mistakingly referred to as Mosque of Umar, the actual mosque of Caliph Umar ibn al-Khattab residing next to the Church of the Holy Sepulchre.
Abd al-Malik instituted many reforms such as: making Arabic the official language of government across the entire empire, instituting a mint that produced a uniform set of aniconic currency, expansion and reorganization of postal service, repairing the damaged
“ When Abd al-Malik intended to construct the Dome of the Rock, he came from Damascus to Jerusalem. He wrote, "Abd al-Malik intends to build a dome (qubba) over the Rock to house the Muslims from cold and heat, and to construct the masjid. But before he starts he wants to know his subjects' opinion." With their approval, the deputies wrote back, "May Allah permit the completion of this enterprise, and may He count the building of the dome and the masjid a good deed for Abd al-Malik and his predecessors." He then gathered craftsmen from all his dominions and asked them to provide him with the description and form of the planned dome before he engaged in its construction. So, it was marked for him in the sahn of the masjid. He then ordered the building of the treasury (bayt al-mal) to the east of the Rock, which is on the edge of the Rock, and filled it with money. He then appointed Raja' ibn Hayweh and Yazid ibn Salam to supervise the construction and ordered them to spend generously on its construction. He then returned to Damascus. When the two men satisfactorily completed the house, they wrote to Abd al-Malik to inform him that they had completed the construction of the dome and al-Masjid al-Aqsa. They said to him "There is nothing in the building that leaves room for criticism." They wrote him that a hundred thousand dinars was left from the budget he allocated. He offered the money to them as a reward, but they declined, indicating that they had already been generously compensated. Abd al-Malik orders the gold coins to be melted and cast on the Dome's exterior, which at the time had a strong glitter that no eye could look straight at it. ”
The two engineers Yazid ibn Salam, a Jerusalemite, and Raja' ibn Hayweh, from Baysan, were ordered to spend generously on the construction. In his Book of the Geography, al-Maqdisi reported that seven times the revenue of Egypt was used to build the Dome. During a discussion with his uncle on why the Caliph spent lavishly on building the mosques in Jerusalem and Damascus.
The last years of his reign were generally peaceful. Abd al-Malik wanted to appoint his son al-Walid I as his successor, ignoring his father's orders to appoint Abd al-Malik's brother, Abd al-Aziz. However, Abd al-Malik accepted advice not to create disturbances by carrying out this design. It turned out to be unnecessary, as Abd al-Aziz died before Abd al-Malik. Abd al-Malik then had his sons al-Walid and Sulayman, in that order, accepted as heirs to the throne.
Refer to website http://www.islamic-architecture.info