Mishkat al-Masabih
Book 30, Hadith 63
Arabic hadith text
عَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ اللَّهَ جَعَلَ الْحَقَّ عَلَى لِسَانِ عُمَرَ وَقَلْبِهِ» . رَوَاهُ التِّرْمِذِيُّ
Translation
Ibn `Umar reported God's messenger as saying, "God has placed truth upon `Umar's tongue and heart." Tirmidhi transmitted it.