Moreover, the Quba mosque has ancient monuments in the form of a stone engraved with old Kofi calligraphy showing the history of building the mosque in 435 AH which the Prophet Muhammad (peace be upon him) himself, and his companions participated in its construction . The mosque is located far from the Prophet's mosque about a half an hour by walk, and the Prophet himself, peace be upon him and his companions participated in constructing it which was renewed by the third Caliph Othman ibn Affan, may Allah be pleased with him, and increased its area, and also renewed by Caliph Omar bin Abdulaziz when he was the Prince of Madinah, and established its minaret in the period from 87/93 AH. In 435 AH, Quba mosque was developed by a niche (Mihrab), and in 555 AH renewed by Kamal Al-Din Al-Isfahani, then its building was renewed several times in years 671 - 733 - 840 - 881 AH at the era of the Ottoman Empire's rule, the last one was in the reign of Sultan Mahmud II and his son, Sultan Abdulmajeed in 1245 AH. --More 13:34 LOCAL TIME 10:34 GMT www.spa.gov.sa/w