Re: Is this true?
First, it quite disturbing that you are using an example of the Prophet (sallallaahu 'alayhi wa sallam), the like of whom never existed nor will, to justify asking your dead “saints” who one does not even know if they were saints!
Second the book you mentioned of Ibn Hajar is a book on Asmaa ur rijaal in which Jarh and Tadeel of narrators is given. It is not a book like Fath Al-Baari which is a book of explanation of Hadith in which Ibn Hajar puts forth his views.
Rather Tahdheeb is a book in which the Jarh and Tadeel of narrators is mentioned and what they did.
Ibn Hajars position is that it is a bidah! The position you quoted is of Imam Abu Ali al-Naysaburi !!!