“A good, authentic, singular hadith.”
I say: Its chain of transmission is good. Ibn Ishaq explicitly stated that he heard it directly, and ʿUqayl corroborated him from Ibn Shihab with the same report, but without the words, “And I was told: ‘Seek forgiveness for them ...’”—that is, the verse—and without the words, “Thereafter, he did not pray over any hypocrite ...,” and so forth. It was narrated by al-Bukhari (1/343–344 and 3/253) and al-Nasaʾi (1/279).
1132 — “Expel the Jews of the Hijaz and the people of Najran from the Arabian Peninsula, and know that the worst of people are those who take the graves of their prophets as mosques.”
Ahmad (no. 1691), al-Darimi (2/233), Abu Yaʿla (p. 248), al-Humaydi (85), and al-Bayhaqi (9/208) narrated it through Yahya ibn Saʿid, who said: Ibrahim ibn Maymun narrated to us; Saʿd ibn Samurah ibn Jundub narrated to us from his father, from Abu ʿUbaydah, who said: “The last thing the Prophet, peace and blessings be upon him, said was”—then he cited the hadith.
Ahmad then narrated it (no. 1691) through Abu Ahmad al-Zubayri, who said: Ibrahim ibn Maymun narrated to us from Saʿd ibn Samurah, with the same report, except that he said, “who take.” This is a good or authentic chain of transmission. All its narrators are trustworthy, except that no narrator from Saʿd ibn Samurah is mentioned other than Ibrahim ibn Maymun.
Ahmad then narrated it (no. 1699) through Wakiʿ, who said: Ibrahim ibn Maymun, the client of the family of Samurah, narrated to me from Ishaq ibn Saʿd ibn Samurah, from his father, from Abu ʿUbaydah ibn al-Jarrah, with the same report, limiting it to the first part of the hadith. He thus inserted Ishaq ibn Saʿd ibn Samurah into the chain and thereby impaired it, for this Ishaq is unknown. The correct version, however, is to omit him from it, as Yahya ibn Saʿid and Abu Ahmad al-Zubayri narrated it. This is the version relied upon by al-Hafiz in al-Taʿjil (p. 29).
Al-Haythami cited the hadith in al-Majmaʿ (5/325) and said: “Ahmad narrated it through several chains. The narrators in two of them are trustworthy, and their chains are continuous. Abu Yaʿla also narrated it.”