Q 2:
Should the Qunut (a form of supplication recited in Prayer) be said before or after Ruku` (bowing)? What is the form of Du`a' (supplication) authentically reported to be recited in Qunut? Can we add anything to it?
What does (Part No. 7; Page No. 185) a Ma'mum (a person being led by an Imam in Prayer) say when the Imam (leader of congregational Prayer) supplicates Allah and praises Him?
A:
A-
The authentic opinion is that it is better for the Du`a' of Qunut to be said in the Witr (Prayer with an odd number of units) after, not before, Ruku`, as there are many authentically reported Hadiths which were narrated concerning this.
B-
A person can supplicate Allah in Qunut using the authentically reported forms of Du`a' or anything else, which they might need in this world or in the Hereafter.
C-
A Ma'mum should say Amen after the Du`a' of the Imam. They can praise Allah and glorify Him when the Imam does, or remain silent.