Ja'far bin Muhammad narrates from his father that the Messenger of Allah ﷺ made Zakat al-Fitr obligatory on every free person, slave, man, and woman among those whom you support.
Hadith Referenceمسند الإمام الشافعي / كتاب الزكاة / 664
Hadith Takhrijاسناده ضعيف لضعف شیخ الشافعي ولإرساله : اخرجه البيهقي : 4 / 161 ۔ وفى المعرفة السنن والآثار له (2402)۔