MUHAMMAD (P.B.U.H)
The reason why there is no picture of the Prophet (peace and blessings of Allaah be upon him) 
why is it that there isn’t a picture available of the prophet Muhammed[pbuh] anywhere in the world?
Islam came to prevent all means that may lead to shirk or the association of others in worship with Allaah. Among these means is the making of images, so sharee’ah forbids making images, and curses the one who does that, and a strong warning is issued to the one who does that. It was narrated from ‘Aa’ishah the Mother of the Believers that Umm Habeebah and Umm Salamah mentioned a church that they had seen in Abyssinia, in which there were images. They mentioned it to the Prophet (peace and blessings of Allaah be upon him) and he said: “Those people, if there was a righteous man among them and he died, they would build a place of worship over his grave and put those images in it. They will be among the most evil of creation before Allaah on the Day of Resurrection.” (narrated by al-Bukhaari, al-Salaah, 409).

It was narrated that ‘Aa’ishah (may Allaah be pleased with her) said: “The Messenger of Allaah (peace and blessings of Allaah be upon him) came back from a journey and I had placed a curtain of mine that had pictures on it over (the door of) a room of mine. When the Messenger of Allaah (peace and blessings of Allaah be upon him) saw it, he tore it and said, ‘The people who will receive the severest punishment on the Day of Resurrection will be those who try to make the like of Allaah’s creation.’ So we turned it (the curtain) into one or two cushions.” (Narrated by al-Bukhaari, al-Libaas, 5498).
It was narrated that ‘Abd-Allaah ibn Mas’ood said: “I heard the Prophet (peace and blessings of Allaah be upon him) say: ‘The people who will be most severely punished on the Day of Resurrection will be the image-makers.’” (Narrated by al-Bukhaari, al-Libaas, 5494).
So how could he grant permission to make a picture of him? Hence none of the Sahaabah dared to make a picture or image of him, because they knew the ruling that doing so was haraam.
Allaah warns against exaggeration, as He says (interpretation of the meaning):
“O people of the Scripture (Christians)! Do not exceed the limits in your religion”
[al-Nisaa’ 4:171]
And the Prophet (peace and blessings of Allaah be upon him) warned against doing anything that may involve exceeding the limits concerning him (peace and blessings of Allaah be upon him). He said: “Do not exaggerate about me as the Christians exaggerated about the son of Maryam, for I am just a slave, so say ‘The slave of Allaah and His Messenger.’” (Narrated by al-Bukhaari, Ahaadeeth al-Anbiya’, 3189).
Imaam Muhammad ibn ‘Abd al-Wahhaab wrote a chapter entitled “Maa jaa’a ‘an sabab kufr Bani Adam huwa al-ghulw fi’l-saaliheen (What was narrated stating that the reason for the kufr of the sons of Adam was their exaggeration concerning the righteous).”, in which he said: “In al-Saheeh it is narrated that Ibn ‘Abbaas (may Allaah be pleased with him) said, concerning the aayah (interpretation of the meaning):
‘“And they have said: ‘You shall not leave your gods, nor shall you leave Wadd, nor Suwaa‘, nor Yaghooth, nor Ya‘ooq nor Nasr’ (these are the names of their idols).’
[Nooh 71:23]
– “These were the names of righteous men among the people of Nooh. When they died, the Shaytaan inspired their people to set up stone altars in the places where they used to sit, and call them by their names. They did that but they did not worship them, until those people died, then the knowledge was forgotten and they were worshipped.”
Ibn al-Qayyim said: “More than one of the salaf said: ‘when they died, the people started to frequent their graves, then they made statues of them, then as time passed they started to worship them.” (Fath al-Majeed Sharh Kitaab al-Tawheed by ‘Abd al-Rahmaan ibn Hasan, p. 219)
For this reason there are no pictures of the Prophet (peace and blessings of Allaah be upon him), because he forbade doing that, lest it lead to shirk.
source: islam-qa