Imam Ja'far al-Sadiq, son of Imam al-Baqir (a.

Imam Ja'far al-Sadiq, son of Imam al-Baqir (a.s.), is quoted to have said: "May Allah curse Mughira bin Sa'id as he used to tell lies against my father, may Allah make him taste the heat of burning iron, may Allah curse those who say a bout us, what we do not say ourselves, may Allah curse those who try to take us away from the servitude of Allah, Who created us, and to Him is our return and in His hand is our control."(51) He (a.s.) also said: "Don't accept any saying (hadith) relating them to us except that which agrees with the Qur'an and the Prophetic traditions (sunnah) unless you see an evidence of our previous sayings with it; indeed Mughira bin Sa'id, may Allah curse him, has interpolated sayings (hadiths) in the books of the companions of my father of which he (my father) did not narrate them, so, fear Allah and don't accept any saying related to us, which disagrees with the statement of Our Lord, the Exalted, and the traditions of our (s.a.w.) - because we, if we narrate any hadith, we always say: The Almighty Allah or the Messenger of Allah (s.a.w) said so and so."(52) He (a.s.) further said: "Mughira bin Sa'id was intentionally belying my father; he used to take the books of his companions, who disguised themselves to be of the companions of my father, and then, they gave them to Mughira who interpolated in them perverted beliefs of unbelief and infidelity and, then, attributed them to my father and therefore, returned them to his companions and ordered them to distribute them among the Shi'a; whenever there is any exaggeration in the books of the companions of my father, be sure that it is the act of Mughira bin Sa'id who interpolated them in his books." Regarding the exaggeration and the interpolation of Abi Al-Khattab and his lie against the Imams of Ahlul-Bait, Imam Ali bin Musa al-Rida (a.s.) said: "Indeed Abi Khattab used to tell lies against Abi Abdullah (Imam al-Sadiq) (a.s.), may Allah curse Abi Khattab, whereas his companions used to interpolate these sayings (hadiths) up until today in the books of Abi Abdullah (a.s.); therefore, don't accept any saying (hadith) related by them to us if they disagree with the Qur'an, because, all our sayings should agree with both the Qur'an and the Prophetic traditions."(53) Thus, the Imams of Ahlul-Bait fought the Exaggerators and deviated groups.