´It was narrated from Ammar bin Sa'eed, the Mu'adhdhin of the Messenger of Allah from his father,:` that the Messenger of Allah enjoined Sadaqatul-Fitr, one Sa of dates, one Sa of barley, or one Sa of Sult (a kind of barley without skin on it, resembling wheat).
Explanation & Benefits
Maulana Ataullah Sajid
Benefit:
Silt is a type of barley (jo) which, unlike common barley (sha'ir), does not have a husk.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 1830