الكافي- ط الاسلامية, volume 1, page 31

6. Ali ibn Muhammad ibn ‘Abdallah has narrated from Ahmad ibn Muhammad ibn Khalid from ‘Uthman ibn ‘Isa from Ali ibn Abi Hamza that he heard Abu ‘Abdillah (al-Sadiq) (as) say, "Acquire good understanding in religion because those of you who do not have good understanding in religion are like the Bedouins. Allah has said in His book, ‘Why do not some people from each group of believers seek to become specialists in religious learning and, after completing their studies, guide their group so that they will have fear of God. (9:122)’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

7. Al-Hassan ibn Muhammad has narrated from Ja‘far ibn Muhammad from al-Qasim ibn al-Rabi‘ from Mufaddal ibn ‘Umar that he heard Abu ‘Abdillah (al-Sadiq) (as) say, "It is necessary for you to have a good understanding of the religion of Allah. Do not be like the Bedouins, because those who do not gain a good understanding of the religion, Allah will not look at them on the Day of Judgement, and none of their deeds will be cleansed."

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

8. Muhammad ibn ’Isma‘il has narrated from al-Fadl ibn Shadhan from Ibn Abi ‘Umayr from Jamil ibn Durraj from Aban ibn Taghlib that Abu ‘Abdillah (al-Sadiq) (as) said, "I would have even liked that my companions' heads are lashed with whips for them to gain a comphrensive understanding [of the religion].

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

9. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from Muhammad ibn ‘Isa from one who narrated to him that Abu ‘Abdillah (al-Sadiq) (as) was asked, "May I be your ransom, there is a man who believes in this issue (i.e. the imamah of Ahlul-bayt), but locks himself at home and does not acquaint himself with his community.” So he said, “How will he achieve a good understanding of his religion [without talking to the knowledgable people of his community]?".

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.