It is narrated from Tawus (may Allah have mercy on him) that he possesses a book regarding blood money (diyah) upon which revelation was sent down. And whatever charity the Messenger of Allah ﷺ made obligatory or whatever blood money he made obligatory, revelation was sent down regarding it. And it has been said that the Messenger of Allah ﷺ never performed any action without Allah’s revelation; one type of revelation is that which is recited, and the other is the revelation that was sent to the Messenger of Allah ﷺ and he acted upon it.
Hadith Referenceمسند الإمام الشافعي / كتاب الزكاة / 662
Hadith Takhrijمرسل : اخرجه البيهقي في المعرفة السنن والآثار (224) ۔ وعبد الرزاق (17201)۔