English: It was taught: Others say: Reuven disturbed two couches — one of the Shechinah and one of his father; and that is what is written “then defiledst thou my couch” — read not “my couch” (singular) but “my couches” (plural).
On the daf / in context: The beraisa offers an alternative reading of the vocalization of יצועי to teach a double disturbance.
Type of Learning
Al tikrei — change of vocalization from singular to plural.
What Is Learned
According to the “Others,” Reuven’s act affected both his father’s marital couch and the resting-place of the Shechinah.