(1)
'Amir bin Rabi'Ah (RAA) narrated that the Messenger of Allah (ﷺ) prayed over 'Uthman bin Madh'un, then went to the grave and sprinkled three handfuls of soil while he was standing.' Related by Ad-Darqutni.
Reference: Bulugh al-Maram 580
In-book reference: Book 3, Hadith 49
English translation: Book 3, Hadith 605