Jumah Khutba

[Sardar Miyan]

Salam all,Hearing the  Jumah Khutba is part of Jumah Salath. While some brothers come late & Will not be present to hear. Some people will enter & stand for Sunnah prayer while the Khutba is in progress. In some Masajid the Imam while giving Khutba takes the names of four Kalifs, Lady Fatima, Hasan , Hussain,&
Abbas. I wanted to ask brothers & sisters if this is right? Thanks