Hadith 6:996
Yazid ibn Harun narrated to us, Sulayman ibn Kathir informed us, from al-Zuhri, from Abdullah ibn Sharhabil, that Uthman went out and ordered the leveling of the graves, so they were leveled, except for the grave of Umm Amr and the father of Uthman. He said, "What is this grave?" They said, "The grave of Umm Amr." So he ordered it, and it was leveled.
حدثنا يزيد بن هارون أخبرنا سليمان بن كثير عن الزهري عن عبد الله بن شرحبيل أن عثمان خرج فأمر بتسوية القبور فسويت إلا قبر أم عمرو وأبيه عثمان فقال ما هذا القبر فقالوا قبر أم عمرو فأمر به فسوي