Sahih Muslim , Book 3, Hadith 91 (In-Book) ⓘ
This hadith has been narrated by Ibn Abu Fudaik and Dabbik b. 'Uthman with the same chain of transmitters and they observed: Private parts of man are the nakedness (which is concealed).
وَحَدَّثَنِيهِ هَارُونُ بْنُ عَبْدِ اللَّهِ، وَمُحَمَّدُ بْنُ رَافِعٍ، قَالاَ حَدَّثَنَا ابْنُ أَبِي فُدَيْكٍ، أَخْبَرَنَا الضَّحَّاكُ بْنُ عُثْمَانَ، بِهَذَا الإِسْنَادِ وَقَالاَ - مَكَانَ عَوْرَةِ - عُرْيَةِ الرَّجُلِ وَعُرْيَةِ الْمَرْأَةِ .
also referenced under: Hadith 338 (Reference) & Book 3, Hadith 668 (USC-MSA)