also, a quote made from Waleed Shoebats site
In this year [635 C.E.], Omar began to restore the Temple at Jerusalem, for the building, in truth, no longer then stood firmly founded, but had fallen to ruin. Now when Omar inquired the cause, the Jews answered saying, ‘Unless thou throw down the Cross, which stands on the Mt. of Olives, the building of the Temple will never be firmly founded.’ Thereupon Omar threw down the Cross at that place, in order that the building (of the Temple) might be made firm…”
Le Strange underlines the trustworthiness of this amazing report by emphasizing that the author, Theophanes, preceded the earliest Arab authorities on this topic by more than 50 years. He further highlights that Theophanes lived “considerably under a century and a half [after] the date of Omar’s conquest of Jerusalem.”