Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "Seventy prophets have passed barefoot by the rock at al-Rawha', wearing cloaks ('aba'), heading for the Ancient House of Allah; among them was the Prophet of Allah, Sayyiduna Musa (peace be upon him)."
Abu Ya'la recorded it. Its chain contains a narrator, Sa'id bin Maysarah, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5349