There is no Sunnah known to us from the Prophet, peace and blessings of Allah be upon him, regarding a virgin whose blood continues [without a previous cycle]. It has come from the Successors (Tabi'un) and the people of knowledge after them regarding this, such as Al-Awza'i, Sufyan, Ibn al-Mubarak, and those who followed their path:
Al-Awza'i and Sufyan held the view: That she should abandon prayer and fasting similar to the menses of her mother, until her natural constitution becomes clear to her later on, then she settles upon that, and her husband refrains from having intercourse with her for the maximum of her mother's cycles."
Ishaq said: Some of the people of knowledge from the people of Medina said: The maximum [duration] that a woman menstruates among us is fifteen days, and this is the opinion of Malik ibn Anas and those who followed him. If the menses at the very first time she saw blood was more than fifteen days: if she saw purity for fifteen days or less, we consider that her cycle. If it exceeded fifteen [days], she is a mustahada (suffering from prolonged non-menstrual bleeding). Even if she saw blood for a day at the beginning of her menses and purity for a day, she should combine the days she saw blood with one another, and discard the days she was pure. If what she menstruated amounts to fifteen days, she should perform ghusl and pray. If it exceeds [that], she is a mustahada. The affair of the mustahada according to the people of Medina is as we have explained; they refer her back to her cycles, to what Malik said are her cycles, and she should seek further precaution by [adding] three [days].
