Ibrahim on Hilm: Toughest on Satan is a gentle, patient scholar

Abu Nu’aym reported: Ibrahim ibn Adham, may Allah have mercy on him, said, “It is said that nothing is harder upon Iblis (Satan) than a forbearing scholar. If he speaks, he speaks with knowledge. If he is silent, he is silent with forbearance.”

Source: Ḥilyat al-Awliyā’ 11446

عن أبي نعيم عَنْ إِبْرَاهِيمَ بْنَ أَدْهَمَ رحمه الله قَالَ كَانَ يُقَالُ لَيْسَ شَيْءٌ أَشَدَّ عَلَى إِبْلِيسَ مِنَ الْعَالِمِ الْحَلِيمِ إِنْ تَكَلَّمَ تَكَلَّمَ بِعِلْمٍ وَإِنْ سَكَتَ سَكَتَ بِحِلْمٍ

11446 حلية الأولياء وطبقات الأصفياء