Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The thigh in a dream is a man's clan and his close relatives. Its strength is the clan's strength. Its severing indicates the scattering of the family.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The thigh indicates the wife. The right thigh is relatives from the father's side, and the left is from the mother's side.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The thigh is interpreted as wealth. Whoever sees his thigh is strong, his wealth will increase.