1. What is the mother name of yazid?
2. still we din't received any fatwa to call (RA) for mavi'a and abu sufiyan then now hw
We called yazid?

Salaam,

I am not sure I understood your second question,but here are links regarding the subject "Yazid ibn Mu`awiyyah ibn Abi Sufyan ibn Harb ibn Umayyah Al-Umawi Al-Dimashqi"

Yazid ibn Mu`ayyiah in Focus - IslamonLine.net - Ask The Scholar (http://www.islamonline.net/servlet/Satellite?pagename=IslamOnline-English-Ask_Scholar/FatwaE/FatwaE&cid=1119503545536)
Imam Hussain's going against Yazid, and the Sunni view on Yazid. Can we curse him? (http://qa.sunnipath.com/issue_view.asp?HD=7&ID=1902&CATE=164)

Wa salaam