Saying Shema prior to sunrise:
When Davening in a Vaasikin/Neitz Minyan: The initial time for Davening Shemoneh Esrei is by sunrise. It is a Mitzvah Min Hamuvchar to read the Shema slightly prior to sunrise, intending to complete the Shema and its last blessing of Goal Yisrael with sunrise. Immediately upon finishing Goal Yisrael by sunrise, one Davens Shemoneh Esrei, thus accomplishing the approximation of Geula to Tefila, and the Davening of Shemoneh Esrei by its initial time of sunrise. One who is able to do this [finish Goal Yisrael immediately by sunrise and then Daven Shemoneh Esrei] receives great reward and is guaranteed a portion in the world to come.