الكافي- ط الاسلامية, volume 2, page 650

7. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from ‘Abd al- Rahman ibn al-Hajjaj who has said the following: ‘‘Once I asked abu al-Hassan Musa (a.s.) ‘If I needed to visit a Christian physician, can I offer the greeting of peace and pray for him?’ The Imam said, ‘Yes, but your prayer will not benefit him.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

8. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Mahbub from ‘Abd al-Rahman ibn al-Hajjaj who has said the following: “Once I asked abu al-Hassan Musa (a.s.) ‘If 1 needed to visit a Christian physician, can I offer him the greeting of peace and pray for him?’ The Imam said, ‘Yes, but your prayer will not benefit him.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

9. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from Muhammad ibn ‘Isa ibn ‘Ubayd from Muhammad ibn ‘Arafah from abu al- Hassan al-Rida (a.s.) who has said the following: “It was asked from Abu ‘Abdillah (a.s.) ‘How do I pray for a Jew or a Christian?’ He had said, ‘Say, “May Allah grant you blessing in this world.’””

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

10. Hamid ibn Ziyad has narrated from al-Hassan ibn Muhammad from Wahab ibn Hafs from abu Basir from one of the two Imam (a.s.) who has said the following: “About shaking hands with a Jew or a Christian he had said, ‘Shake hands with them from behind clothes and if you shook their hand without clothes then you must wash your hands.”’

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

11. Abu Ali al-Ash’ari has narrated from al-Hassan ibn Ali al-Kufi from Abbas ibn ‘Amir from Ali ibn Ma’mar from Khalid al-Qalanisi who said: “I asked Abu ‘Abdillah (as), ‘What should I do if I meet a tax paying non-Muslim and he shakes my hand?’ He replied, ‘Wipe it with soil or against a wall.’ I asked, ‘What about one who is a nasibi (someone who hates the Ahlul Bayt)?‘ He said, ‘Wash it (your hand).”’

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

12. Abu Ali al-Ash’ari has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan from al-‘Ala’ ibn Razin from Muhammad ibn Muslim from abu Ja’far (a.s.) who has said the following: “About a man who had shaken hand with Majusi (Zoroastrian), the Imam said, ‘He must wash it but he does not need to perform wuzu again.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.