It is related to Muhammad because Muhammad was illiterate/unlearned, a book was delivered to him, he was told to read the book, and he protested that he was illiterate.
And the vision of all is become unto you as the words of a book that is sealed, which [men] deliver to one that is learned, saying, Read this, I pray thee: and he saith, I cannot; for it [is] sealed:
And the book is delivered to him that is not learned, saying, Read this, I pray thee: and he saith, I am not learned.
Isaiah 29:11-12
An Angel came to him and asked him to read. Allah's Messenger (ﷺ) replied, "I do not know how to read." The Prophet (ﷺ) added, "Then the Angel held me (forcibly) and pressed me so hard that I felt distressed. Then he released me and again asked me to read, and I replied, 'I do not know how to read.' Thereupon he held me again and pressed me for the second time till I felt distressed. He then released me and asked me to read, but again I replied. 'I do not know how to read.' Thereupon he held me for the third time and pressed me till I got distressed, and then he released me and said, 'Read, in the Name of your Lord Who has created (all that exists), has created man out of a clot, Read!
Hadith of the Prophet Muhammad (saws) in English and Arabic
sunnah.com