Who set the boundaries of the Haram?

The first to delineate the boundaries of the Haram was the Prophet of Allah, Ibrahim (peace be upon him), by the command and revelation of Allah. He learned them and set up their markers, with Jibreel (peace be upon him) showing him their locations. Then the Prophet (peace and blessings of Allah be upon him) was commanded to renew them, followed by Umar, Uthman, and Mu'awiyah (may Allah be pleased with them). The Messenger of Allah (peace and blessings of Allah be upon him) sent Tamim ibn Asad Al-Khuza'i to renew the markers of the Haram that Ibrahim (peace be upon him) had established.