Reference for Megillah 59:6

אלא מאי אית לך למימר כופלה בשבתות הכא נמי כופלה בשבתות

Rather what can you say [according to Abaye] this portion [of Shekalim] is read on two successive Shabbatot; so l too can answer that it is read on two consecutive Shabbatot.

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