"That is (bleeding from) a vein, so when the time of menstruation comes, stop praying, and when it goes, then wash the blood from yourself then pray."
Sunan an-Nasa'i Book 1, Hadith 202
← Previous Hadith "The Messenger of Allah (ﷺ) said: 'The man's water is thick and white, and the woman's water is thin and yellow. Whichever of them comes first, the child will resemble (that parent).'"

Sunan an-Nasa'i Book 1, Hadith 201 Next Hadith → "When the time of menstruation comes, stop praying, and when it goes, perform Ghusl."

Sunan an-Nasa'i Book 1, Hadith 203