Qatadah said: I asked Sayyiduna Anas bin Malik (may Allah be pleased with him): Did the Companions of the Prophet (peace and blessings be upon him) shake hands? He said: Yes.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13568
Al-Bara' bin Azib (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "When two Muslims meet and shake hands, and praise Allah and seek His forgiveness, they are both forgiven."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13569
Sayyiduna al-Bara' bin Azib (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Whenever two Muslims meet and shake hands, they are forgiven before they part."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13571