What to do with the old Quran Sharif that cannot be read 9394733621

What should I do if the Qur'an, Hadith books and Islamic books where the verses of the Qur'an are written are very old (difficult to read)? Many people say that when the paper written in Arabic becomes old, that is, if it is difficult to read, it has to be burnt, while others say that it has to be thrown in the pond. What should actually be done? I have a guide on the subject of Islam in the last class, so that the verses of the Quran are recorded. I have sold guides on other subjects at Rs. Per kg, but I have not sold Islamic education guides because if it is sold, it may be kept in unclean places in various places and its paper may be used to make sticks which may remain on the roadside after later use. What to do about it? 4463862238