The disturbed one.
Useful information: If blood is discharged for more than 10 days from a muztariba (i.e. a woman whose blood has been discharged for a few months but whose habit has not yet been formed) and all the blood discharged contains signs of me- she should treat 6 or 7 of those days to be the period of menses and consider the remaining days to be istihaza.501. If the blood of a muztariba is discharge for more than ten days out of which the blood which comes for some days has the signs of menses and the blood which comes on other days has the signs of istihaza, and if the blood which has the signs of menses does not come for less than 3 days and more than 10 days all of it u menses. And if she cannot treat the entire blood which contains the signs of menses to be menses: e.g. if the blood comes for 5 days with signs of menses and for another 5 days with signs of istihaza and for 5 days again with signs of menses she should observe precaution in respect of both the bloods which possess the signs of menses and which can be treated by her to be menses i.e. which have not come for less than 3 days and more than 10 days. And she should treat the middle one which does not have the signs of menses to be istihaza. And if she can treat only one of the bloods to be menses she should treat that one to be menses and the rest to be istihaza.