The Prophet (sal Allahu alaihi wa sallam) said, “There are no two Muslims who meet and shake hands with one another, but they will be forgiven before they part.”
[Sunan Abu Dawood (5212); classed as Sahih by al-Albaani]
We benefit from the above Hadith the virtues of shaking hands with your fellow Muslim brother.
Imam Al-Nawawi (may Allah have mercy upon him) said: “Shaking hands when meeting is a Sunnah on which there is consensus.”
And Allah knows best!