Ahmad narrated it (1/168) through Fulayh, from ʿAbd Allah ibn ʿAbd al-Rahman—that is, Ibn Maʿmar—who said: ʿAmir ibn Saʿd related to ʿUmar ibn ʿAbd al-ʿAziz, while he was governor of Madinah, that Saʿd said: “The Messenger of Allah, peace and blessings be upon him, said...” and he then cited it.

I say: This is a good chain for corroborative evidence, and it also meets the criteria of the two Sahihs, despite the criticism concerning Fulayh, who is Fulayh ibn Sulayman al-Madani. Al-Hafiz said: “Truthful, but frequently mistaken.” Sulayman ibn Bilal also corroborated him from ʿAbd Allah ibn ʿAbd al-Rahman with the same report, except that he did not mention “on an empty stomach” or eating them in the evening, and he said “poison” instead of “anything.” Muslim narrated it (6/123).

He then also narrated it through Hashim ibn Hashim, who said: “I heard ʿAmir ibn Saʿd,” in an abbreviated form, and he said: “Poison and no spell.”