This group attempts to extrapolate, investigate and publish heritage texts.<br>​The purpose of investigating heritage texts is to try to produce them as their author intended, without adding or subtracting anything, and to serve them by documenting them, explaining their mysteries, identifying their notables and controlling them, and publishing the knowledge, sciences and benefits they contain. This is a task that requires many reviews in the books, knowing how to deal with them and interrogate them, and patience and training in reading manuscripts and deciphering their mysteries, then what comes from commenting on the heritage text and illuminating it and linking it to the books that revolve around it or are from it because of it, then making technical indexes that reveal the treasures of the book and explaining its value in the Arab library....More