ENOfficial
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.
Source: sunnah.com
Other translations
Arabic
وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «فَقِيهٌ وَاحِدٌ أَشَدُّ عَلَى الشَّيْطَانِ مِنْ أَلْفِ عَابِدٍ» . رَوَاهُ التِّرْمِذِيُّ وَابْن مَاجَه)
sunnah.com