I said to Anas, "Did the companions of the Prophet ﷺ shake hands with one another?"He replied, "Yes."
قلت لأنس: أكانت المصافحة في أصحاب النبي ﷺ قال: نعم.
Bukhari narrated it in the Book of Seeking Permission (6263) from Amr bin Asim, who said, Hammam narrated to us, from Qatada, who mentioned it.