Q 4: What is
the ruling on the praying person shaking hands with and saying Salam (Islamic greeting of peace) to the Imam (the one who leads congregational Prayer) and the worshipers praying on either side?
If they have not shaken hands with one another upon meeting before offering Salah (Prayer), they should shake hands after saying Taslim (salutation of peace ending the Prayer); whether the Salah is obligatory or supererogatory, and whether they stood in Salah to their right or left side, but the greeting should be postponed in obligatory Salah until after reciting the prescribed Adhkar (invocations and remembrances said at certain times on a regular basis). As for greeting the Imam after finishing Salah, we know of no legal evidence in support of or against this matter. (Part No. 7; Page No. 123) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family and Companions.