Reference for Berakhot 3:11

תנא פתח בערבית והדר תני בשחרית עד דקאי בשחרית פריש מילי דשחרית והדר פריש מילי דערבית:

The Tanna started with the evening one first, and then one says two blessings before [the Shema] and one after it, while in the evening one says two blessings before it and two after it," he should have dealt with the evening first!

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