1—As for the hadith of Abu Hurayrah, it has several routes of transmission from him:

First: from Abu Ubayd, the freedman of Abd al-Rahman ibn Awf, from him, who said: The Messenger of Allah (peace and blessings be upon him) said. It was recorded by al-Bukhari (4 / 48), Muslim (8 / 140), and Ahmad (2 / 264). Muslim’s is the wording cited here, while al-Bukhari includes the seventh supplementary wording.

Second: from Sa'id al-Maqburi, from him, with the same wording; it includes the sixth supplementary wording. It was recorded by al-Bukhari (4 / 222) and Ahmad (2 / 514, 537).

Third: from Busr ibn Sa'id, from him, with the same wording; it includes part of the fourth supplementary wording, phrased: “But strive to be correct.” It was recorded by Muslim (8 / 139) and Ahmad (2 / 451).

Fourth: from Muhammad ibn Sirin, from him, with the same wording. It was recorded by Muslim and Ahmad (2 / 235, 326, 390, 473, 509, and 524). Muslim includes the second supplementary wording, while Ahmad includes the first, second, and third.

Fifth: from Abu Salih, from him, with the same wording; it includes the fourth supplementary wording. It was recorded by Muslim, Ibn Majah (4201), and Ahmad (2 / 344 and 495).

Sixth: from Ziyad al-Makhzumi, from him. It includes the second supplementary wording. It was recorded by Ahmad (2 / 256 and 473).

Seventh: from Muhammad ibn Ziyad, from him. It includes the second supplementary wording. It was recorded by Ahmad (2 / 385–386 and 469), and its chain of transmission is authentic.