أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ مُوسَى، عَنْ عُثْمَانَ بْنِ الْأَسْوَدِ، عَنْ مُجَاهِدٍ فِي الْمُسْتَحَاضَةِ إِذَا خَلَفَتْ قُرُوءُهَا: "فَإِذَا كَانَ عِنْدَ الْعَصْرِ تَوَضَّأَتْ وُضُوءًا سَابِغًا ثُمَّ لِتَأْخُذْ ثَوْبًا، فَلْتَسْتَثْفِرْ بِهِ، ثُمَّ لِتُصَلِّ الظُّهْرَ وَالْعَصْرَ جَمِيعًا، ثُمَّ لِتَفْعَلْ مِثْلَ ذَلِكَ، ثُمَّ لِتُصَلِّ الْمَغْرِبَ وَالْعِشَاءَ جَمِيعًا، ثُمَّ لِتَفْعَلْ مِثْلَ ذَلِكَ، ثُمَّ تُصَلِّي الصُّبْحَ".
It is narrated from Mujahid regarding the woman experiencing irregular bleeding (mustahadah) that when her menstrual blood becomes irregular, if this irregularity occurs at the time of Asr, she should perform ablution, take a cloth and bind it with cotton, then combine and perform the Zuhr and Asr prayers together, and continue doing so. Then she should combine and perform the Maghrib and Isha prayers together, and continue doing so. Then she should perform the Fajr prayer.