Caution

CAUTION (Arabic Hazar) is enjoined by Muhammad who is related to have said: “A Muslim is not bitten twice at the same hole” “He is no perfect man who has not fallen into troub1e, for there is no skillful physician but experience.” “When a man has spoken and has then looked first to his right and then to his left, what he has said is sacred to those present and they must not disclose it to others.” (Mishkat, xxii. c. xviii.)

Based on Hughes, Dictionary of Islam