Musannaf Ibn Abi Shaybah 8557 — Prayer during an earthquake

Safiyyah bint Abi Ubayd said: Once, in the time of Sayyiduna Umar (may Allah be pleased with him), there was such an earthquake that the beds began to shake. Sayyiduna Abdullah bin Umar (may Allah be pleased with him) was praying at that time, and he did not feel the earthquake at all. On this occasion, Sayyiduna Umar addressed the people and said: "You have introduced new things (into the religion), and you have been very hasty." Safiyyah said: To my knowledge, after that he only said: "If the earthquake comes again, I will leave from among you."