he compiled and authored what no one else had authored." Then he elaborated extensively on his biography. Al-Ḥurr ibn Muḥammad was also translated by al-Khaṭīb, who presented this ḥadīth for him, and narrated from al-Dāraqūṭnī that he said about him: "There is no harm in him," and from others that he was "a trustworthy shaykh." The rest of the narrators are trustworthy, the narrators of the six [books], except for al-Zubayr ibn Bakkār, who is trustworthy as mentioned in "al-Taqrīb." However, Khālid was not alone in narrating it; Abū Ṣakhr, who is Ḥumayd ibn Ziyād, also followed him with the wording: "The believer is sociable, and there is no good in one who neither associates nor is associated with." It was recorded by Aḥmad and his son ʿAbd Allāh (2/400). Aḥmad said: "Hārūn ibn Maʿrūf narrated to us"—ʿAbd Allāh said: "And I heard it myself from Hārūn"—"ʿAbd Allāh ibn Wahb narrated to us, saying: 'Abū Ṣakhr informed me from Abū Ḥāzim from Abū Ṣāliḥ from Abū Hurayrah (raḍiya Allāhu ʿanhu) as a marfūʿ ḥadīth.'" Al-Haythamī mentioned it (8/87, 10/273) saying: "It was narrated by Aḥmad and al-Bazzār, and its men are the men of the authentic [collections]." I say: All of them are from the narrators of Muslim, so it is authentic according to his criteria. It was also recorded by al-Ḥākim (1/23), who abbreviated it, from the route of Aḥmad ibn Yaḥyā ibn Razīn: "Hārūn ibn Maʿrūf narrated to us, ʿAbd Allāh ibn Wahb narrated to us, Abū Ṣakhr narrated to us from Abū Ḥāzim from Abū Hurayrah as a marfūʿ ḥadīth with the wording: 'Indeed, the believer associates,' and the rest is similar, but he omitted Abū Ṣāliḥ from the isnād, and said: 'Authentic according to the criteria of the two shaykhs, and I do not know of any defect in it.'"