As for Ibn Ḥibbān, he mentioned him in "al-Thiqāt" (5/440)! However, the ḥadīth is ḥasan, as I have found some supporting evidence for it: 1- from Ibn ʿAbbās, raised [to the Prophet] with the wording: "I was weighed against all creation, and I outweighed them, then Abū Bakr was weighed..." It was recorded by Ibn ʿAdī in "al-Kāmil" (6/325-326) through the route of Maʿrūf ibn Abī Maʿrūf al-Balkhī: Thana Jarīr: Thana Layth from Mujāhid from him. And this isnād is weak; Layth is Ibn Abī Sulaym, who had become confused. And this Maʿrūf is unknown, not well-known, as Ibn ʿAdī said. 2- from Abū Umāmah, raised [to the Prophet] with the wording: "I was brought with a scale, and I was placed in it, and my ummah was placed in another scale, and I outweighed them, then Abū Bakr was brought..." the ḥadīth. It was recorded by Aḥmad in "al-Musnad" (5/259) and in "al-Faḍāʾil" (1/194-196), and from him by al-Khaṭīb in "al-Tārīkh" (14/78) through the route of Muṭṭarīḥ ibn Yazīd from ʿUbayd Allāh ibn Zahr from ʿAlī ibn Yazīd from al-Qāsim from him. I say: And this isnād is weak, consisting of a series of weak narrators: ʿAlī ibn Yazīd—who is al-Alhānī—and those below him, and al-ʿIrāqī weakened it in "al-Mughnī" (4/359). And it was narrated by al-Ṭabarānī (8/254-255) through the route of Muḥammad ibn ʿUbayd Allāh al-ʿArzamī from ʿUbayd Allāh ibn Zahr with it. And al-ʿArzamī is abandoned
وأما ابن حبان؛ فذكره في "الثقات " (٥/ ٤٤٠) ! لكن الحديث حسن، فقد وجدت له بعض الشواهد: ا- عن ابن عباس مرفوعاً بلفظ:"وُزنتُ بالخلقِ كلهم، فرجحت بهم، ثم وزن أبو بكر ... " أخرجه ابن عدي في "الكامل " (٦/٣٢٥-٣٢٦) من طريق معروف بن أبي معروف البَلْخي: ثنا جرير: ثنا ليث عن مجاهد عنه. وهذا إسناد ضعيف؛ ليث: هو ابن أبي سليم؛ كان اختلط. ومعروف هذا؛ مجهول، ليس بمعروف؛ كما قال ابن عدي. ٢- عن أبي أمامة مرفوعاً بلفظ:"أُتيتُ بكِفَّةٍ فوضعت فيها، ووضعت أمتي في كفة، فرجحت بها، ثم أتي بأبي بكر ... " الحديث. أخرجه أحمد في "المسند" (٥/٢٥٩) وفي "الفضائل " (١/١٩٤- ١٩٦) ، وعنه الخطيب في "التاريخ " (١٤/٧٨) من طريق مُطَّرِح بن يزيد عن عبيد الله بن زحْر عن علي بن يزيد عن القاسم عنه. قلت: وهذا إسناد ضعيف مسلسل بالضعفاء: علي بن يزيد- وهو الألهاني- واللذان دونه، وضعفه العراقي في "المغني " (٤/٣٥٩) . ورواه الطبراني (٨/٢٥٤- ٢٥٥) من طريق محمد بن عبيد الله العرزمي عن عبيد الله بن زحر به. والعرزمي متروك.