أَخْبَرَنَا حَجَّاجٌ ، حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ ، عَنْ عَلِيِّ بْنِ ثَابِتٍ ، عَنْ مُحَمَّدِ بْنِ زَيْدٍ ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ ، قَالَ :" الْحَيْضُ إِلَى ثَلَاثَةَ عَشَرَ يَوْمًا، فَمَا سِوَى ذَلِكَ فَهِيَ مُسْتَحَاضَةٌ "

Hajjaj told us, Hammad bin Salamah told us, on the authority of Ali bin Thabit, on the authority of Muhammad bin Zayd, on the authority of Saeed bin Jubayr, he said: “Menstruation until… Thirteen days, and anything other than that is considered mustahaadah.”