It is a singular report, and the conjunction “and” that accompanies the phrase “from Muʿāwiyah” is an insertion in my copy and therefore must be checked with care (1). Abū Hārūn is weak.
106 – Muḥammad ibn Qāsim ibn Muḥammad ibn Qāsim ibn Muḥammad ibn Sayyār,
an eminent imam and great ḥāfiẓ, Abū ʿAbd Allāh al-Bayyānī—note the doubled middle consonant—an Umayyad client, an Andalusian from Córdoba.
He heard ḥadith from his father, from Baqī ibn Makhlad, Muḥammad ibn Waḍḍāḥ, and, during his travels, from Abū ʿAbd al-Raḥmān al-Nasāʾī, Abū Khalīfah al-Jumahī, Muṭayyin, Yūsuf ibn Yaʿqūb the judge, Muḥammad ibn ʿUthmān al-ʿAbsī, and their peers.
Abū Muḥammad al-Bājī said, “I never met in Córdoba a shaykh who possessed more ḥadith than he.” (2)
I say: He was a learned, trustworthy scholar, a leading authority on contractual stipulations and the drafting of legal documents. (3)
= The report is transmitted from Muawiya ibn Qurra through this same chain. Abu Harun al-Abdi—whose given name is Amara ibn Juwayn—is a rejected narrator, and some scholars labelled him a fabricator. Al-Hakim also recorded the hadith (4/557) through a different isnad with the wording: “The Hour will not come until the earth is filled with oppression, injustice, and aggression; then a man from my Household will emerge and fill it with equity and justice just as it had been filled with oppression and aggression.” He declared it authentic and al-Dhahabi agreed; their judgement is sound.
(1) The correct reading omits the conjunction “wa,” as already shown in the citation taken from al-Baghawi.
(*) Sources: Ibn Farhun, Tarikh ulama al-Andalus, 2/46; Ibn al-Hazm, Jadwat al-Muqtabis, 80–81; Ibn al-Ashtur, Bughyat al-Multamis, 124; al-Dhahabi, Tadhkirat al-Huffaz, 3/844–845; al-Dhahabi, al-Ibar, 2/209; al-Safadi, al-Wafi bi-l-Wafayat, 4/344; al-Suyuti, Tabaqat al-Huffaz, 349–350; Ibn al-Imad, Shadharat al-Dhahab, 2/309.
(2) Tarikh ulama al-Andalus, 2/46.
(3) Tadhkirat al-Huffaz, 3/845.