Sayyiduna Anas (may Allah be pleased with him) narrates: "Menstruation can be for three, four, five, six, seven, eight, nine, (up to) ten (days)."

Sayyiduna Anas (may Allah be pleased with him) narrates: "The minimum duration of menstruation is three days and the maximum is ten days."

Sayyiduna Anas (may Allah be pleased with him) narrates: "Menstruation cannot exceed ten days."

Sufyan al-Thawri says: "The minimum duration of menstruation is three days and the maximum is ten days."

Sayyiduna Anas (may Allah be pleased with him) said: "A woman will be considered menstruating as long as her menstruation lasts up to ten days. If it exceeds that, she will be considered mustahadah (having irregular bleeding)."

Shaykh Abu Zur’ah Dimashqi says: I saw Imam Ahmad bin Hanbal. He did not accept this narration of Jald bin Ayyub. I heard Imam Ahmad bin Hanbal saying that he said: "If this narration is considered authentic, then Ibn Sirin would not have said this." The slave woman (umm walad) of Sayyiduna Anas bin Malik suffered from istihada (non-menstrual bleeding), so they sent me to Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) so that I could ask him about this issue.

Hammad bin Zaid narrates: I and Jarir bin Hazim went to Juld bin Ayyub, and he narrated regarding the mustahadah woman: "The mustahadah woman will wait for three days, five days, seven days, or ten days (i.e., she will consider these days as menstruation)." So we went and tried to stop him, but he did not differentiate between menstruation and istihada.

Sayyiduna Anas (may Allah be pleased with him) narrates: "A menstruating woman will wait for three days, four, five days up to ten days. If the bleeding exceeds ten days, then she will be considered mustahadah (having irregular bleeding), and she should perform ghusl and start offering prayers."

Uthman bin Abu al-As narrates: "A woman will not be considered mustahadah (having non-menstrual bleeding) due to one, two, or three days, until it reaches ten days. When it reaches ten days, then after that the woman will be considered mustahadah."

Uthman bin Abu al-As Thaqafi narrates: "If a menstruating woman continues to bleed after ten days, then she will be considered mustahadah. She should perform ghusl and offer prayers."