Prayer: Salah is prohibited and invalid. This also includes things that come under the rulings of prayer such as سجدة التلاوة.
إذا أقبلت الحيضة فدعي الصلاة
Give up the prayer when your menses begin
Fasting: Fasting is prohibited and invalid.
كان يصيبنا ذلك فنؤمر بقضاء الصوم
That used to happen to us and we were commanded to ...