HAYA حياء
“Shame, pudency, modesty.” The word does not occur in the Qur’an, but in the Traditions it is said, “Allahu hayiyun, i.e. “God acts with modesty.” By which is understood that God hates that which is immodest or shameless. Muhammad is related to have said, “Modesty (haya) brings nothing but good.” (Mishkat, book xxii. ch. xix.)
“Shame, pudency, modesty.” The word does not occur in the Qur’an, but in the Traditions it is said, “Allahu hayiyun, i.e. “God acts with modesty.” By which is understood that God hates that which is immodest or shameless. Muhammad is related to have said, “Modesty (haya) brings nothing but good.” (Mishkat, book xxii. ch. xix.)
Based on Hughes, Dictionary of Islam