Reference for Ketubot 214:10

א"ל רב שמן בר אבא כבר תרגמה רבינו שמואל בבבל כששמעו בו שמת א"ל פתריתו בה כולי האי

Shemen b. Abba answered him: Our Master, Shmuel, in Babylon has already solved: [She receives maintenance only] when they have heard that he died. He responded, “With this, you have solved everything?”

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