Found in the biography of Shaykh Muhammad bin Saalih al-Uthaymeen rahimahullah was that when he gave a lecture at the University of Madeenah, the Shaykh rahimahullah noticed there were a few video cameras prepared in the hall of the place where he was going to give his lecture. Therefore, the Shaykh rahimahullah said before his lecture, “I do not permit anyone to take a picture of me and whoever takes a picture of me, I will be his opponent on the Day of Judgement”. Then the Shaykh rahimahullah began his lecture.
Note: This speech above was during when (i.e. after) Shaykh Muhammad bin Saalih al-Uthaymeen rahimahullah changed his opinion to his later stance on pictures.
Reference of his speech:
AbdulFattaah Bin Uthman