Mishkat al-Masabih 30 Fine Qualities كتاب المناقب 262

وَعَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كَمْ مِنْ أَشْعَثَ أَغْبَرَ ذِي طِمْرَيْنِ لَا يَؤُبَّهُ لَهُ لَوْ أَقْسَمَ عَلَى اللَّهِ لَأَبَرَّهُ مِنْهُمُ الْبَرَاءُ بْنُ مَالِكٍ» رواء التِّرْمِذِيّ وَالْبَيْهَقِيّ فِي دَلَائِل النُّبُوَّة

Anas reported God’s messenger as saying, “There are many with dishevelled hair and dusty bodies who wear two ragged garments to whom no attention is paid but who would be declared righteous by God if they adjured Him. Among them is al-Bara’ b. Malik.” Tirmidhi and Baihaqi, in Dala’il an-nubuwa , transmitted it.