It is obligatory for the Muslims to respect the Prophet (blessings and peace of Allah be upon him), venerate him and declare him to be above all shortcomings. The religious texts indicate that deliberately speaking ill of the Prophet (blessings and peace of Allah be upon him) constitutes disbelief (kufr). Speaking ill of the daughter is a great offence to the father, especially if the offence takes the form of slander, because people naturally feel that slander of the daughter would undermine the father’s status among people, and he would be shamed by that. Undoubtedly the one who slanders the daughter of the Messenger of Allah (blessings and peace of Allah be upon him) causes great offence to her father (blessings and peace of Allah be upon him) and would undermine his status among people, so deliberately doing that constitutes disbelief (kufr). Please see the details of that and the views of the scholars in the long answer.

Allah has told us of the ways in which He sent revelation to His Messengers, one of which was speaking from behind a veil. Allah spoke directly to some Prophets such as Adam, Musa and Muhammad. Allah spoke directly to Prophet Muhammad during the Night Journey without any intermediary.

Messiah is a title of Prophet Jesus (peace be upon him). He was given this title because Allah purified him of sins or he was anointed with blessings or because when he touched the sick with his hands, they were healed.