General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 5130
Narrated Awf ibn Malik al-Ashja'i':
The Prophet (peace_be_upon_him) said: I and a woman whose cheeks have become black shall on the Day of Resurrection be like these two (pointing to the middle and forefinger), i.e. a woman of rank and beauty who has been bereft of her husband and devotes herself to her fatherless children till they go their separate ways or die.