This is a strange but good hadith. (1)

'Umar ibn Harun also narrated this hadith from Ibn Jurayj, and he said: from al-'Abbas ibn Mina, from the Prophet, peace and blessings be upon him, and he mentioned part of this hadith.

681 - Jarud narrated to us, he said: 'Umar ibn Harun narrated this hadith to us. (2)

682 - Qutaybah narrated to us, he said: Hammad ibn Zayd narrated to us, from Ayyub, from Nafi', from Ibn 'Umar, who said: The Messenger of Allah, peace and blessings be upon him, made the charity of Fitr obligatory upon the male and the female, the free and the slave, a sa' of dates or a sa' of barley. He said: Then the people equated it to half a sa' of wheat. (3)

This is a good and sound hadith.

On this topic, there is also a narration from Abu Sa'id, Ibn 'Abbas, and the grandfather of al-Harith ibn--------------------------------------------
= crying out loudly... and he mentioned it.
And 'Abd al-Razzaq (5800) narrated it, and from his chain al-Daraqutni 2/141 from Ibn Jurayj, from 'Amr ibn Shu'ayb: that the Prophet, peace and blessings be upon him, sent a crier... and he mentioned it as mursal. And he added in it: whether present or absent.

(1) In copy (L): "good and strange," and what is confirmed is from the rest of the manuscript sources and the commentary of al-Mubarakfuri.
(2) From his saying: "And 'Umar ibn Harun narrated," up to here, we have confirmed it from copy (L) alone, and it does not appear in the rest of our manuscript sources, nor in the commentary of al-Mubarakfuri.
(3) A sound hadith, narrated by al-Bukhari (1503), Muslim (984), Abu Dawud (1611-1614), Ibn Majah (1825) and (1826), al-Nasa'i 5/46-49. It is in the Musnad of Ahmad (4486), Sahih Ibn Hibban (3300-3304), and Sharh Mushkil al-Athar (3423-3427).