On the authority of a man from among the Companions of the Prophet, peace and blessings of Allah be upon him, who said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "ʿAmmār was filled with faith to the very marrow of his bones."(1)

5008 - Muḥammad ibn Bashshār informed us, saying: ʿAbd al-Raḥmān narrated to us, saying: Sufyān narrated to us, on the authority of Qays ibn Muslim, on the authority of Ṭāriq ibn Shihāb, who said:

Abū Saʿīd al-Khudrī(2) said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: "Whoever among you(3) sees an evil, let him change it with his hand; if he is not able, then with his tongue; if he is not able, then with his heart—and that is the weakest of faith."(4)

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(1) Its chain of transmission is sound. ʿAbd al-Raḥmān: he is Ibn Mahdī, and Sufyān: he is Ibn Saʿīd al-Thawrī, and al-Aʿmash: he is Sulaymān ibn Mihrān, and Abū ʿAmmār: he is ʿUrayb ibn Ḥumayd. The anonymity of the Companion's name does no harm, especially since his name is given by al-Ḥākim 3/392 as ʿAbd Allah, meaning Ibn Masʿūd. It is in al-Sunan al-Kubrā, no. (8215), on the authority of Isḥāq ibn Manṣūr alone.
His saying: "to the very marrow of his bones" (ilā mushāshihi); al-Sindī said: They are the extremities of the bones, such as the elbows, shoulders, and knees.
(2) The word "al-Khudrī" is from (R).
(3) The word "among you" (minkum) is from (M).
(4) Its chain of transmission is sound. ʿAbd al-Raḥmān: he is Ibn Mahdī, and Sufyān: he is Ibn Saʿīd al-Thawrī, and Qays ibn Muslim: he is al-Jadalī, and Ṭāriq ibn Shihāb: he is al-Aḥmasī.
It was also recorded by al-Tirmidhī (2172) on the authority of Muḥammad ibn Bashshār, with this chain. At its beginning: The first to present the sermon before the prayer was Marwān, and a man stood up and said to Marwān: "You have violated the Sunnah." He said: "O so-and-so, what was there has been abandoned." Abū Saʿīd said: "As for this one, he has fulfilled what was upon him." Then Abū Saʿīd mentioned the ḥadīth. Al-Tirmidhī said: This is a ḥasan ṣaḥīḥ ḥadīth.
It was also recorded—with the aforementioned addition—by Aḥmad (11460) on the authority of ʿAbd al-Raḥmān ibn Mahdī, with it.
It was also recorded—likewise—by Aḥmad (11514), Muslim (49): (78), and Ibn Ḥibbān (306) via Wakīʿ, on the authority of Sufyān al-Thawrī, with it.
It was also recorded—likewise as well—by Aḥmad (11150) and (11876), and Muslim (49): (78) via Shuʿbah, on the authority of Qays ibn Muslim, with it.