Is the hadith, "The best soldiers on earth are the people of Egypt," authentic, and does it apply to them now?

The author of Kanz al-Ummal reported a Hadith (definition) with the wording: "When Allah opens Egypt for you, take a large army from it, for that army is the best army on earth." And that Abu Bakr asked the Prophet, peace and blessings be upon him, about the reason, and he replied: "Because they and their wives are in a state of continuous devotion (ribat) until the Day of Judgment." He then mentioned that the Hadith was narrated by Ibn Abd al-Hakam in Futuh Misr and by Ibn Asakir, and that its chain of narration includes al-Aswad ibn Malik al-Himyari, for whom no biography exists. Based on the obscurity of some of its narrators, the Hadith is weak.