Hadith 1:62
Muttafaqun 'alayh (Zubair `Aliza'i)
Anas reported God’s messenger as saying, “The devil flows in a man like his blood.” (Bukhari and Muslim.)
وَعَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِنَّ الشَّيْطَانَ يَجْرِي مِنَ الانسان مجْرى الدَّم»
Original Reference: Mishkat al-Masabih 68