Question Summary:
Sharia ruling of imaam lifting hands and making dua after fardh Salaah

Question Detail:

What is the Sharia ruling regarding the imaam lifting hands and  making dua after fardh salaah?

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
It is permissible for the Imaam to lift his hands after salaah and make dua. It is not compulsory to do so.[1] To regard a permissible act as compulsory in Deen is Bid’ah.
And Allah Ta’āla Knows Best
Ridwaan Ibn Khalid Esmail {Kasak}
Student Darul Iftaa
Katete, Zambia 
Checked and Approved by,
Mufti Ebrahim Desai.