Hadhrat Mufti Mahmud Hasan Gangohi (ra) once said:

Hadhrat ‘Allamah Anwar Shah Kashmiri’s (ra) abundant studying was such that when he had lost the ability to move his hands during his final illness, he would lie down on his side and an open book would be placed standing on a chair in front of him. When he would finish studying a full page, he would motion to someone to turn the page and someone would turn it. Hadhrat would then begin studying [the next page.]

Malfoozat [Mufti Mahmud Hasan Gangohi], Volume 3, Page 232