Shabbat Parah is the third of the four special Shabbatot of the spring, and the Haftarah is taken from one of the chapters of comfort of Yechezkel.
Linear annotated translation of the Haftarah of Shabbat Parah
For the connection between the Parsha of Parah, the Haftarah, Passover, and Purim (yes, Purim), see: Shabbat Parah – Paradox.
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