I have heard a lot of people saying O'Sensei said "something".
Only recently Henry Kono Sensei was quite able to put my feeling about this to words. His words were ( at least as remembered by me and past on in my own way, probably distorting it already) :" A lot of teachers say O'Sensei said this and O'Sensei said that. How do they know what O'Sensei said? They were not there! "