Jami` at-Tirmidhi Book 42, Hadith 40
that the Messenger of Allah (ﷺ) said: "No two Muslims meet each other and shake hands, except that Allah forgives them before they part."
"From Abu Ishaq, from Al-Bara - and he did not hear it from him - the Messenger of Allah (ﷺ) passed by some people from the Ansar while they were sitting in the road. He said: 'If you people must do this, then return the Salam, assist the wronged, and give directions to the one who is on the route."
that a man said: "O Messenger of Allah! When a man among us meets his brother or his friend should he bow to him?" He said: "No." The man continued: "Should he embrace him and kiss him?" He said: "No." He said: "Should he take his hand and shake it?" He said: "Yes."