The Sealed Bottle of Wine

It is told that before the Sinai Campaign, Rav Moshe Yaakov foresaw the war and told those close to him about it. He added that the Jews would win.

Before his passing he left behind a sealed bottle of wine and instructed that it be opened only after the victory over Gamal Abdel Nasser. Half a year after he passed away, the Six Day War was fought, and afterward the bottle was opened. A sip from it is regarded as a segulah (a source of merit and blessing).