As for the ḥadith of Asmāʾ, al-Ḥākim and al-Dhahabī said that its chain fulfills the conditions set by Muslim.

Glossary of ḥadith terms
• tustahāḍu: istiḥāḍah (non-menstrual bleeding). It is a flow of blood outside its normal times, caused by a tumor, an inflammation, or other ailments of the uterus, cervix, or vagina, the opening of an artery, or by taking certain medications, pills, or even psychological states.
• mirkān: a basin in which clothes are washed; plural marākīn.
• ṣufrah: a yellowish tint that appears in reddish blood.
• dhāliki: the pronoun “that,” addressed to the woman making the complaint; it may also be pronounced with a fatḥah on the kāf when intended as a general address.
• amsikī ʿan al-ṣalāh: “refrain from the prayer.” The verb amsaka–yumsiku means “to withhold.” Hence, the phrase means “stop performing the prayer,” as in the narrations of al-Bukhārī (228) and Muslim (333): “then leave the prayer.”

Points gleaned from the ḥadith

1. The ḥadith clarifies the nature of menstrual blood and establishes its ruling, to be discussed later, God willing. Menstrual blood is a normal, natural occurrence—a physiological process stemming from the uterine cycle under the effect of hormones secreted by the ovaries. The ovaries are influenced by pituitary hormones, which are themselves governed by commands from the area beneath the hypothalamus in the brain.
2. It confirms that istiḥāḍah occurs in some women and explains the rulings that apply to it.
3. When a woman experiences continuous bleeding, she distinguishes her menstrual days by the black color of menstrual blood, whereas the blood of istiḥāḍah is bright red.