Mushaf rasmi khat refers to the spelling style of the Mushafs copied under the leadership of Caliph Uthman ibn Affan. The importance of the official letter is that since ancient times all Muslim scholars have emphasized that it is obligatory to write the Holy Qur’an only in this spelling. However, scholars differed on whether this spelling was recorded through revelation or based on the knowledge of the Companions. Many argue that the spelling of the Qur’an was created on the basis of the knowledge and experience of the Companions, and at the same time under the control of revelation. This opinion has a scientific basis. There are aspects of rasmi khat that are different from the current spelling, and this difference has been interpreted by researchers in different ways: 1. Some scholars, including many orientalists, claimed that the characteristics of rasmi khat were created because the companions did not know the letter well. This opinion has no scientific value. 2. A group of scholars connected the characteristics of the letter to divine mysteries and tried to explain them internally and went deep into this issue. This opinion also has no scientific basis and does not correspond to the rule. 3. The features observed in the official letter were the requirements of the spelling rules and skills of that time. Ancient expert scientists and modern researchers supported this idea. Scientific research also proves this.