What Is the Definition of Writing the Megillah?
Reading, Ketuvim, or an Inherent Act of Writing
Is the Megillah just for reading — or something more?
The Rebbe and the Rogatchover Gaon on the geder of writing the Megillah: as a means to reading, as part of the canon of Ketuvim, or as an act with independent significance — granting the Megillah a unique, enduring status, like the Chumashim themselves.
לקוטי שיחות, חלק כו, זכור-פורים