Answered by Shaykh Amjad Rasheed
Is it sunna to shake hands with for both men and women?
Yes, it is sunna mu’akkadah (confirmed sunna) to shake hands when men meet with men and women meet with women. The hadiths about it are very well-known and are mentioned in the Adkhar of Imam al-Nawawi and other books where it mentions its rulings. So the questioner should refer to such works because they have many benefits.
– Amjad Rasheed
(Translated by Shazia Ahmad)
[f: Imam Nawawi’s Riyad al-Salihin has various sections on the proper manners of greeting, shaking hands, and other interaction please read it.]