Does the hadeeth which forbids leaving the mosque after the adhaan include
women, if they are in the mosque?

Praise be to Allaah. 

We put this
question to Shaykh Muhammad ibn Saalih al-‘Uthaymeen, may Allaah
preserve him, who replied as follows:

 It does
not include them, because women are not obliged to pray in jamaa’ah (in
the first place). And Allaah knows best.