Of the many companions, Abu Hurairah taught hadith to students, one of whom was Hammam ibn Munabbih. Ibn Munabbih wrote down these hadith, the original manuscripts of which are present even to this day in the libraries of Berlin, Beirut and Damascus.[22]
Then this should be correct, as taken from Wiki:
Sahifah Hammam ibn Munabbih was one of the 9 students of Abu Hurairah. Abu Hurairah used to narrate the hadith he heard from the Prophet to his 9 students. Out of all 9 students, only Sahifah Hammam ibn Munabbih's book has survived in manuscript form. It was later edited and published by Dr. Muhammad Hamidullah in 1961 in Hyderabad, India. Sahifah Hammam ibn Munabbih is perhaps one of the earliest known hadith collection.
So, this is correct to say that the most influencial and used Hadith in Islam is on the authority of Abu Hurairah, kept in records by Sahifah Hammam ibn Munabbih. The earliest record is thus one link removed from Muhammad.
Although I tried to get confirmation on the presence of the original manuscripts but it was impossible to get anything anywhere other than on one page on Wikipedia, which I won't take for granted. It seems a certain Dr. Muhammad Hamidullah "found" some parts of the manuscripts in two different libraries and proceeded to translate them and to publish and edit them. I'm not disputing the facts that Hammam ibn Munabbih wrote some ahadith, but the fact that we might not have the original manuscript written by his hand.
I anyone could post a link to confirm the location and existence of the original manuscript, I think it would benefit everyone. It seems to me that not everyone agrees about the oldest available documents, but I found this from the Leipzig university library:
The project will set up a database-supported index and provide digital access to a group of about 55 Arabic, Persian and Turkish manuscripts. The Leipzig University Library purchased these manuscripts in 1995 and 1996. In this pioneer project, for the first time Arabic script will be integrated into a database that will also feature German and American transliteration systems. This will provide scholars of Oriental Studies worldwide with access to a hitherto unknown pool of Islamic manuscripts.
The variety of disciplines covered in the manuscript collection, the origins of some works from early periods of Islamic scholarship, the age of the copies and their historical proximity to the respective author, as well as the elaborate decoration, deserve special attention. A key place in the collection will be taken by one of the oldest known Ismaili manuscripts in the world, the Kitāb al-Zīna by the Ismaili author Abū Hātim al-Rāzī (d. 322 H. / 934 AD).
The manuscripts contain texts in Arabic, Persian and Ottoman-Turkish and show an amazingly broad spectrum as far as the content is concerned, which comprises almost all traditional Islamic fields of knowledge. With a few exceptions, the manuscripts are mostly complete and well preserved. That many of these manuscripts came from the libraries of private scholars or families is suggested in several manuscripts by the many comments, some of which span over several generations, from the previous owners. The place of origin seems to be the gulf region, Yemen and Iran.
Duration of the project: 1.5 years. Start: August 2006.
From Islamic Manuscripts website:
Jan Just
Witkam, The oldest known dated Arabic manuscript on paper (dated Dhu al-Qa`da 252 (866 AD).
This is MS Leiden Or. 298. Arabic, paper, 241 ff., upright script (with application of
ihmal), dated Dhu al-Qa`da 252 (f.241b; 866 AD), and thereby probably the oldest dated Arabic manuscript on paper, bound in a full-leather standard Library binding.
The volume contains an incomplete copy of
Gharib al-Hadith, by Abu `Ubayd al-Qasim b. Sallam al-Baghdadi (d. 223/837), GAL G I, 107. See Voorhoeve,
Handlist, p. 95. The present MS has been used as MS No. 3 by Muhammad `Azim al-Din in his edition of the text:
Gharib al-Hadith li-Abi `Ubayd al-Qasim b. Sallam al-Harawi. Hydarabad 1384-1387/1964-1967 (4 vols.). On p. xvi of vol. I, he gives a short note about the importance of the MS.
It seems there are no original manuscripts of Hammam ibn Munabbih
