The fourth Sultan Yıldırım Bayazid built it. Sultan Şeyhül İslam Molla Fenari read the first sermon at the opening ceremony where Emir Sultan was also present and Hamidüddin from Aksaray called Somuncu Baba and made the first sermon. Shortly after the opening of the year 1400 A.D., there was an invasion of Timur and Karaman, the façade of the mosque was destroyed, it was repaired after the invaders left, and the exterior was completely plastered. Later, with minor repairs, it came up to the earthquake of 1854, many domes collapsed in the earthquake, the writings were distorted, and the great editors corrected the writings and added new ones.
ARCHITECTURAL DIRECTION AND VALUES
The mosque is 49.96 x 63.36 m (3165.5 square meters) inwards. It preserves the spirit of the 14th century. It is the first type of great mosque that sheds light on Turkish Ottoman architecture. Architecture is unknown. It has 20 domes tied with arches on 12 legs. The dome – arch connection arch heads are simple, the ones in front of the western minaret are triangular with the mihrab. The top of the fountain is open. The pulpit gives the Seljuk Architectural feature with its carvings and shapes in walnut tree. The inscription on the door (in the year 802 migration by order of Murad son Bayazid) (1399 A.D.) was made on the side handrail, Abdulaziz son Mehmed, who came from Devak, one of the villages of Tabriz, did not neglect to put his signature. The eastern door of the mosque is in the same style. They repaired the mihrab, whose flowers were made of gold leaf, in 1905 and some in 1977. Abdullah Münzevi turned the hall under the Hünkar mahfel built in 1780 into a library. The stone pulpit made of solid marble was built in 1231 Hijra. According to the inscription underneath, the muezzin mahfeli was built in the year 956 Hijra (1554 Gregorian).
CALLIGRAPHY
Its walls are fixed and there are 192 inscriptions in slabs. Examples of 13 varieties of the Arabic writing form are masterpieces of our famous writing masters (M, Shavik Abdel Fattah). A famous writing master called Algerian is a hadith who received the great tugra in the year 1192 Hijra. The standing and hanging sign in front of the western gate is a scarce that Hazrat Uftade sang for the Great Mosque. The writings are all verses and pieces of hadith. Such a collection of writings does not exist anywhere else.
One of the iconic characters identified with Bursa Ulucami is the famous letter “Vav”. What makes him so much in the hearts and minds of the people is the narrations that Hızır (as) is at its center. Hızır, whose name has a meaning related to the word that expresses the color green in Arabic, visits the regions where green is abundant according to the legends. For this reason, it is a very common rumor in the public floor that he often comes to Bursa and prays in front of the vav letter in Ulucami every time he comes. People consider it a different blessing to pray at that point today. This art nadid, written in sulus calligraphy, is one of the examples that have survived from before the great earthquake. Vav carries a rich depth and delicacy with its meaning façade as well as a letter with high artistic and aesthetic value, being a sign that represents the revelation of Allah, and since the abjad value is 6, if two of them come together, the number 66, that is, the equivalent of the word of Allah (the tulip in the vav in the Ulucami is also 66 with the value of ebcet), reminding the posture of man in the mother’s womb and the servant’s prostration, Allah’s use of this letter when casting on beings… Such subtleties are examples of the lem’as of the light that floats through the vav window and illuminates our heart-eye.