Al-Asbahani also narrated it in al-Targhib (p. 223, al-Jamiʿah edition), through Musa ibn Khalaf: Aban narrated to us, from ʿAtaʾ, from Ibn ʿUmar—may Allah be pleased with him—as a report traced back to the Prophet. Al-Asbahani said: “Aban is Ibn Bashir al-Maktab.” I say: He is unknown, as Ibn Abi Hatim stated. Ibn Hibban listed him in al-Thiqat (6/68) (1), and a number of people narrated from him, as noted in Taysir al-Intifaʿ.
His report is reinforced by the narration of ʿAbd al-Salam, from Layth, from Nafiʿ, from Ibn ʿUmar, who said: “There came upon us a time—or he said, a period—when no one was more entitled to his dinar and dirham than his Muslim brother. But now, worldly life and the dirham are dearer to one of us than his Muslim brother. I heard the Prophet, may Allah bless him and grant him peace, say...” He then cited it. Al-Bukhari recorded it in al-Adab al-Mufrad (111).
I say: Its transmitters are trustworthy and are among those relied upon by al-Bukhari and Muslim, apart from Layth, who, according to the stronger view, is Layth ibn Abi Sulaym. For Layth ibn Saʿd, the authoritative imam, also narrated from Nafiʿ; however, they did not list this ʿAbd al-Salam—who is Ibn Harb—among those who narrated from him, but rather among those who narrated from Ibn Abi Sulaym, who is weak on account of his poor memory. Thus, this report is strengthened by the one before it. And Allah knows best.
(Note): Al-Mundhiri, in al-Targhib (3/237), did not come across this narration of al-Bukhari for this hadith. He therefore attributed it only to al-Asbahani and, on that basis, indicated that it was weak. Had he come across this narration, he would not have done so, Allah willing.