مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 3112
Marriage
Looking at a Woman who is asked in Marriage, and an Explanation of what may not be seen - Section 2
وَعَنْ جَرْهَدٍ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «أَمَا عَلِمْتَ أَنَّ الْفَخِذَ عَوْرَةٌ» . رَوَاهُ التِّرْمِذِيّ وَأَبُو دَاوُد
Jarhad reported the Prophet (ﷺ) as saying, "Do you not know that the thigh is a private part?” Tirmidhi and Abu Dawud transmitted it.
Mishkat al-Masabih, 3112ضَعِيف (الألباني)