Full Sharh — Mishkat al-Masabih 519
وَعَنْ عَدِيِّ بْنِ ثَابِتٍ عَنْ أَبِيهِ عَنْ جَدِّهِ - قَالَ يَحْيَى بْنُ مَعِينٍ: جَدُّ عَدِيٍّ اسْمُهُ دِينَارٌ - عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ قَالَ فِي الْمُسْتَحَاضَةِ: «تَدَعُ الصَّلَاةَ أَيَّامَ أَقْرَائِهَا الَّتِي كَانَتْ تَحِيضُ فِيهَا ثُمَّ تَغْتَسِلُ وَتَتَوَضَّأُ عِنْدَ كُلِّ صَلَاةٍ وَتَصُومُ وَتُصَلِّي» . رَوَاهُ التِّرْمِذِيّ وَأَبُو دَاوُد
English Translation
‘Adi b. Thabit quoted his father as saying that his grandfather (‘Adi's grandfather’s name is given as Dinar by Yahya b. Ma'in) reported the Prophet as saying regarding a woman who has a prolonged flow of blood that she should abandon prayer during as many days as she used to have her courses, then wash, perform ablution for every prayer, fast and pray. Tirmidhi and Abu Dawud transmitted it.
Source
Mishkat al-Masabih(مشكاة المصابيح)
Purification
Hadith Number
519