Ruling on naming a mosque after a specific person
Question

                It is known that naming mosques after specific people is not liked and is regarded as makrooh. What is your opinion on that? If that is true, then what is your view on naming the mosque of Sayyidah Zaynab after her, and the mosque of al-Husayn and the mosque of Ahmad al-Rifaa’i?.
Praise be to Allah.What you 
    have mentioned about the naming of mosques after specific people being 
    makrooh is the opinion of some scholars, but the majority of scholars 
    regarded that as permissible, not makrooh. 
Imam 
    al-Bukhaari said: 
CHAPTER: Can 
    it be said “The Mosque of Banu So and so”?, then he quoted the hadeeth of 
    Ibn ‘Umar, that the Messenger of Allaah  (peace and blessings of Allaah 
    be upon him) organized a race for horses that had been made lean between 
    al-Hafya’ and Thaniyat al-Wadaa’, and another race for horses that had not 
    been made lean between al-Thaniyah and the mosque of Banu Ruzayq, and 
    ‘Abd-Allaah ibn ‘Umar was among those who took part in the race. 
Al-Haafiz 
    ibn Hajar said in Fath al-Baari: 
From this it 
    may be understood that it is permissible to attribute a mosque to its 
    builder or to those who worship in it. Similarly, it is permissible to 
    attribute good deeds to those who do them. The author (Imam al-Bukhaari) put 
    the heading of this chapter in the form of a question to indicate that there 
    is a possibility that this attribution of the mosque to that tribe is 
    something that was either known to the Prophet  (peace and blessings of 
    Allaah be upon him) and it happened during his lifetime, or it happened 
    after he had died, but the former is more likely, and the majority are of 
    the view that it is permissible. The one who disagreed with that is 
    Ibraaheem al-Nakha’i, as Ibn Abi Shaybah narrated that he regarded it as 
    makrooh to say “the mosque of Banu So and so” or “the musalla (prayer 
    prayer) of Banu So and so,” because Allaah says (interpretation of the 
    meaning): “And the mosques are for Allaah (Alone)” [al-Jinn 72:18]. 
    His response was that the possessive in such cases is purpose of 
    distinguishing it (from other mosques) and does not indicate ownership. End 
    quote. 
Ibn 
    al-‘Arabi said in Ahkaam al-Qur’aan (4/277): 
Although the 
    mosques belong to Allaah by way of ownership and honouring, they may be 
    attributed to others as a means of identification, so it may be said: The 
    mosque of so and so. End quote. 
Al-Nawawi 
    said in al-Majmoo’ (2/208): 
There is 
    nothing wrong with saying The mosque of So and so, or The Mosque of Banu So 
    and so, by way of identification. End quote. 
Based on 
    this, there is nothing wrong with calling a mosque by the name of a specific 
    person such as the one who built it or prayed in it. Similarly there is 
    nothing wrong with giving the name of a Muslim scholar or prominent Muslim 
    figure to a mosque by way of identification only, but a mosque should not be 
    given the name of someone who is known for bid’ah, because that is 
    venerating him and encouraging the common folk to follow his way. And Allaah 
    knows best.