Sa'id bin Abi Sa'id al-Maqburi narrates from his father, who said: We were at a funeral when Sayyiduna Abu Hurayrah (may Allah be pleased with him) took Marwan by the hand, and the two of them sat down before the deceased was set down (in the grave). Sayyiduna Abu Sa'id (may Allah be pleased with him) came, took Marwan by the hand and said: "Stand up, for by Allah, this man knows that the Prophet (peace and blessings be upon him) forbade this." Sayyiduna Abu Hurayrah (may Allah be pleased with him) said: "He has spoken the truth."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6873