Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates that Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) said to his son: "O my son, if some new turmoil arises among the people, come to the cave in which the Prophet (peace and blessings be upon him) and I hid, and stay in that cave, for your provision will come to you in that cave morning and evening."
Al-Bazzar recorded it; its chain contains Musa bin Mutayr, who is a kadhdhab (liar).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5770