Hazrat Nafi’ bin Jubair narrates that Hazrat Ka’b asked Hazrat Abdullah bin Amr (may Allah be pleased with him):“Is there such a thing as bad omen?”He replied:“Yes!”He asked:“Then what supplication do you recite?”He replied:“I recite this supplication: Translation: O Allah! There is no bad omen except Your bad omen. And there is no good except Your good. And we have no Lord besides You.”Hazrat Ka’b said:“You are the greatest jurist among the Arabs.”