Fatima bint Abi Hubaish came to the Prophet (ﷺ) and said, "O Allah's Messenger (ﷺ) I get persistent bleeding
from the uterus and do not become clean. Shall I give up my prayers?" Allah's Messenger (ﷺ) replied, "No,
because it is from a blood vessel and not the menses. So when your real menses begins give up your
prayers and when it has finished wash off the blood (take a bath) and offer your prayers." Hisham (the
sub narrator) narrated that his father had also said, (the Prophet (ﷺ) told her): "Perform ablution for every
prayer till the time of the next period comes."
Sahih al-Bukhari Book 4, Hadith 94