Some people hold their hands up and say Amen while the Imam is delivering the Friday Khutbah and supplicating

Q 2: Some people hold their hands up and say Amen while the Imam (the one who leads congregational Prayer) is delivering the Friday Khutbah (sermon) and supplicating. Is this permissible?

A 2: Neither the Imam nor the Ma'mums (people being led by an Imam in Prayer) are allowed to raise their hands during Du`a' (supplication) of Friday Khutbah, because this was not reported from the Prophet (peace be upon him). An exception of that is that when the Imam supplicates for rain in the Friday Khutbah. In this case, he should raise his hands, following the example of the Prophet (peace be upon him), and the people should do the same. (Part No. 7; Page No. 121) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.