Hadith 2:19
Ibn ‘Abbas reported God’s messenger as saying, “One faqih has more power over the devil than a thousand devout men.” Tirmidhi and Ibn Majah transmitted it.
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «فَقِيهٌ وَاحِدٌ أَشَدُّ عَلَى الشَّيْطَانِ مِنْ أَلْفِ عَابِدٍ» . رَوَاهُ التِّرْمِذِيُّ وَابْن مَاجَه)
Original Reference: Mishkat al-Masabih 217