Al-Amali- Sheikh Al-Mofeed p.60:
Anas Bin Malik reported that the Messenger of Allah (pbuhp) said: "O Anas, wash and cleanse yourself greatly, for Allah by that shall prolong your life and if you are capable of being pure (Tahir) day and night, then be so. For, if you die pure, you shall die a martyr. Perform the Prayer of High Noon, for it is the prayer of the repentant. Volunteer massively, thus the Recording Angels will love you for that. Greet whomever you meet and thus Allah shall increase your good deeds and greet as well in your house, so Allah shall increase your blessing. Respect the elderly Muslims and have mercy on their young and so I shall come with you on the Day of Resurrection as these two- and he united his forefinger with his middle finger."
Al-Mahasen- Ahmad Bin Mohammad Bin Khaled Al-Barqi vol.2 p.387:
Abou Abdellah (pbuh) reported from his forefathers (pbut) who said that the Messenger of Allah (pbuhp) said: "The best of you is the one who feeds others, initiates greeting and prays while people are asleep."
Al-Kafi- Sheikh Al-Koleini vol.2 p.181:
Jaber reported from Abou Jaafar (pbuh) that the Messenger of Allah (pbuhp) said: "When you meet, meet one another with greetings and handshaking and when you depart, depart one another with asking forgiveness."
Ilal Al-Shara'e'- Sheikh Al-Sadouq vol.2 p.582:
Ali Bin Abi Talib (pbuh) reported that the Messenger of Allah (pbuhp) said: "Do not keep meat cloths in your home. For it is the place of the Devil. Do not keep soil behind the door, for it is the dwelling of demons. When you undress yourselves, mention Allah's Name, so that the Jinn would not wear it. For if Allah's Name wasn't mentioned over it, the Jinn will wear it until morning.Do not follow thecatch of your hunt, because you are unaware of its dangers. When you reach the door of your room, say Allah's Name, thus the Devil will flee and when you enter your homes, say the greeting of peace, thus blessings will descend and the angels will delight you. Do not ride in threes on an animal, for one of you will be damned, which is the one in the front, and do not call the road a railway because their all no railways but those of Heaven."
Meshkat Al-Anwar- Ali Al-Tabarsi p.346:
The Prince of Believers (pbuh) said: "The greeting of peace is seventy good deeds; sixty nine for the initiator and one for the replier."
Al-Khisal- Sheikh Al-Sadouq p.21:
Abou Jaafar Al-Baqir (pbuh) said: When a believer shakes hands with another believer, they shall depart without any sins."