Is it permissible for a Khatib

Q: If a person shakes hands with his Muslim brother after the Imam (the one who leads congregational Prayer) mounts the Minbar (pulpit) during the Jumu`ah (Friday) Prayer, is their Salah (Prayer) rendered invalid?

A: A person who attends the Jumu`ah Prayer should listen to the Khutbah (sermon) and not be distracted. It was authentically reported that the Prophet (peace be upon him) said, If you (even) ask your companion to be quiet on Friday while the Imam is delivering the Khutbah, you have in fact talked irrelevance. (Agreed upon by Al-Bukhari and Muslim). (Part No. 8; Page No. 246) As for shaking hands without talking, it is as harmless as making signs.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.