The Book of Faith
1/96. Chapter:
Allah will say to Adam: "Bring out the Portion of the Fire; Nine Hundred and Ninety-Nine Out of Every Thousand."
Sahih Muslim
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، ح وَحَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، كِلاَهُمَا عَنِ الأَعْمَشِ، بِهَذَا الإِسْنَادِ غَيْرَ أَنَّهُمَا قَالاَ " مَا أَنْتُمْ يَوْمَئِذٍ فِي النَّاسِ إِلاَّ كَالشَّعْرَةِ الْبَيْضَاءِ فِي الثَّوْرِ الأَسْوَدِ أَوْ كَالشَّعْرَةِ السَّوْدَاءِ فِي الثَّوْرِ الأَبْيَضِ " . وَلَمْ يَذْكُرَا " أَوْ كَالرَّقْمَةِ فِي ذِرَاعِ الْحِمَارِ " .
The same hadith has been narrated from A'mash on the authority of the same chain of transmitters with the exception of these words: You would be no more among men (on the Day of Resurrection) but like a white hair on (the body of) a black ox, or like a black hair on (the body of) a white ox, and he made no mention of: a strip on the foreleg of an ass.
Reference : Sahih Muslim 222bIn-book reference : Book 1, Hadith 439USC-MSA web (English) reference : Book 1, Hadith 431