Sunan Ibn Majah 1828
سنن ابن ماجه#1828SahihIt was narrated that:Qais bin Sa'ad said: “The Messenger of Allah (ﷺ) enjoined Sadaqatul-Fitr upon is before (the command of) Zakat was revealed. He neither ordered us (to pay) nor forbade us (from paying it), so we did it.”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih
In-book reference: 8:46