Welcome to the Judaism community on Codidact!
Will you help us build our community of learners? Drop into our study hall, ask questions, help others with answers to their questions, share a d'var torah if you're so inclined, invite your friends, and join us in building this community together. Not an ask-the-rabbi service, just people at all levels learning together.
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According to Dinonline.org, there doesn't seem to be any source for this custom.
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