Its apparent sense is that, in the sources he named, the report reaches them through a chain other than that of Abū Ḥamzah, for he is not counted among the transmitters relied upon in the Sahih collections, and Ibn Ḥajar states unequivocally in al-Taqrīb that he is weak—so the matter deserves re-examination.
Al-Suyūṭī, in al-Khaṣāʾiṣ 1/406–407, attributed the tradition to al-Bazzār, Abū Yaʿlā, al-Ḥārith ibn Abī Usāmah, al-Ṭabarānī, Abū Nuʿaym, and Ibn ʿAsākir through the route of ʿAlqamah, and, as is his custom, offered no comment on its grading; he did the same in al-Durr al-Manthūr 4/147.
I then consulted al-Ṭabarānī’s al-Kabīr (no. 9976) and Kashf al-Astār ʿan Zawāʾid al-Bazzār (no. 59) and found the hadith there transmitted through Ḥammād ibn Salamah with that very chain. It thus became clear to me that al-Haythamī erred in the statement cited earlier.
Al-Aʿmash also narrated—from Ibrāhīm, from ʿAlqamah, from ʿAbdullāh ibn Masʿūd (may Allah be pleased with him)—concerning the verse, “Indeed he saw some of the greatest signs of his Lord” ⦗Q 53:18⦘, that he said: “He saw a green carpet stretching across the horizon.” Al-Bukhārī recorded it (4858), as did al-Ṭayālisī (278), Ibn Jarīr (27/57), and al-Ṭabarānī in al-Kabīr (9051–9053).