<m.Megillah 4.4>  

One who reads the Torah [in Synagogue] should read not less than three verses, and he should not read to the translator more than one verse [at a time]. In a prophet, however, [He may give him] three at a time. If the three verses constitute three separate paragraphs, he must read them [to the translator] one by one. The reader may skip [from place to place] in a prophet but not in the Torah. How far may he skip? [only] so far that the translator will not have stopped [before he finds his place].

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