Musnad Abu Ya'la al-Mawsili 164:10

Abu Ma'mar narrated to us, Jarir narrated to us, from 'Ata' ibn al-Sa'ib, from Abu Yahya al-Nakha'i, that: Al-Hasan and al-Husayn passed by Marwan, and he said something ugly to them. Al-Hasan or al-Husayn said: "By Allah, then by Allah, Allah has cursed you while you were in the loins of al-Hakam, upon the tongue of His Prophet, may Allah bless him and grant him peace." He said: So Marwan remained silent.