Narrated Al-Muttalib: When Uthman ibn Maz'un died, he was brought out on his bier and buried. The Prophet ﷺ ordered a man to bring him a stone, but he was unable to carry it. The Messenger of Allah ﷺ got up and going over to it rolled up his sleeves. The narrator Kathir told that al-Muttalib remarked: The one who told me about the Messenger of Allah ﷺ said: I still seem to see the whiteness of the forearms of the Messenger of Allah ﷺ when he rolled up his sleeves. He then carried it and placed it at his head saying: I am marking my brother's grave with it, and I shall bury beside him those of my family who die.
Hadith Referenceسنن ابي داود / كتاب الجنائز / 3206
Hadith Gradingالألبانی:حسن | زبیر علی زئی:إسناده حسن, مشكوة المصابيح (1711)
Hadith Takhrij« تفرد بہ أبو داود، (تحفة الأشراف: 15672) (حسن) » (متابعات و شواہد سے تقویت پا کر یہ صحیح بھی حسن ہے، ورنہ کثیر بن زید سے روایت میں غلطیاں ہو جایا کرتی تھی)۔