"It is only a vein and not menstruation. When menstruation comes, leave off prayer, and when it goes away, wash the blood from yourself and then pray (then perform ablution for each prayer until that time comes)." This was narrated by al-Shaykhān and Abū ʿAwānah in their "Ṣaḥīḥ" collections, and by the four authors of the Sunan, Mālik, al-Dārimī, al-Dāraqūṭnī, al-Bayhaqī, and Aḥmad from the ḥadīth of ʿĀʾishah who said: "Fāṭimah bint Ḥubaysh came to the Messenger of Allāh (ṣallá Allāhu ʿalayhi wa-sallam) and said: 'I am a woman who experiences non-menstrual bleeding and do not become pure. Should I leave off prayer?' He said..." and mentioned it. Al-Tirmidhī said: "A ḥasan ṣaḥīḥ ḥadīth." The addition is his and al-Bukhārī's. The point of evidence from the ḥadīth is his saying: "Wash the blood from yourself," which is another proof of the impurity of menstrual blood. Among the peculiar views of Ibn Ḥazm is that he believed the statement (the blood) generally includes all blood from humans and animals! He said in "al-Muḥallá" (1/102-103): "This is a general statement from him (ṣallá Allāhu ʿalayhi wa-sallam) about the type of blood, and we do not care about the question if its answer stands on its own without being referred back to the question!" Some scholars have refuted him, saying in the margin of the manuscript of "al-Muḥallá" quoting from the printed version: "Rather, it is more apparent that he means menstrual blood, and the definite article is for the previously mentioned context indicating menstruation, just like the return of the pronoun, so his statement 'This is a general statement, etc.' is not valid." Shaykh Aḥmad Shākir commented on it: "This is a clear and correct correction."