Thābit ibn Abī Ṣafiyya famously known as Abū Ḥamza al-Thumālī Thābit ibn Dīnār (Arabic: أبو حمزة الثمالي) formerly disciple of Ali al-Sajjad, was also among Muhammad al-Baqir's followers.
He is regarded as a trustworthy transmitter by Shias but untrustworthy by Sunni hadith scholars.
Al-Najashi said: “He was the best of our companions and the most reliable of them in narration and tradition.” It was reported that Ali al-Rida said: “Abu Hamza at his time is like Salman at his time.” Shia rijal books say that Abu Hamza consumed prohibited intoxicants.
[1] His sons died martyrs with the great revolutionist, Zayd ibn Ali.
His hadith should be written but it cannot be relied upon.” Ya’qub b. Sufyan (d. 277): “He is weak.” Imam Al-Nasa'i (d. 303): “He is not reliable.” Al-‘Uqayli (d. 322), Al-Dulabi (d. 310), and Ibn Al-Jarud (d. 307) and others weakened him.