Silsilat al-Ahadith al-Sahihah

Narrated from Sayyiduna Anas (may Allah be pleased with him): The Messenger of Allah (peace and blessings be upon him) passed by the date palms of Banu Najjar. He (peace be upon him) heard some sounds and asked, "What is this?" The noble Companions replied that it was the grave of a man who had died in the days of ignorance. The Prophet (peace and blessings be upon him) said, "If I did not fear that you would stop burying (your dead), I would have asked Allah, the Mighty and Majestic, to let you hear the sounds of the punishment of the grave that I hear."