Kriyat Shema has to be said when it's definitely night; if you daven ma'ariv early, Shema has to be repeated. What can't you do after davening Maariv early?
Rabbi Aaron E. Glatt, MD, MACP, FIDSA, FSHEA is the Associate Rabbi at the Young Israel of Woodmere. He has been giving a Daf Yomi shiur for 30 years (available on YUTorah), and also gives a weekly gemara be’iyun shiur, daily halacha shiurim, and many other classes. An international lecturer on medical and halachic issues, Rabbi Dr. Glatt has autho...