It is narrated from Sayyida Aisha (may Allah be pleased with her) that the Noble Prophet (peace and blessings be upon him) said: A woman experiencing istihada (non-menstrual bleeding) will perform prayer, even if her blood continues to flow onto the mat.
Hadith Referenceالفتح الربانی / كتاب الحيض والإستحاضة والنفاس / 977