Sunan Ibn Majah 621
سنن ابن ماجه#621SahihIt was narrated that 'Aishah said:"Fatimah bint Abi Hubaish came to the Messenger of Allah and said: 'O Messenger of Allah! I am a woman who bleeds continuously and never becomes pure, should I give up the prayer?' He said: 'No, rather that is a vein and it is not menstruation. When the time of your period comes, leave off the prayer, and when it is over, take a bath and wash the blood from yourself and perform the prayer." This is the Hadith of Waki
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 1:355