Musannaf Ibn Abi Shaybah 34432 — Reports on Abu Musa

Sayyiduna Anas bin Malik (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) said: "Some people will come to you who are very soft-hearted." The narrator said: Then the people of the tribe of Ash'ar came, and among them was Sayyiduna Abu Musa (may Allah be pleased with him). They were reciting rajaz verses: "Tomorrow we shall meet the beloved ones, Muhammad (peace and blessings be upon him) and his party."