بُلُوغُ الْمَرَامِ
Bulugh al-Maram 695
Fasting
وَعَنْ عَبْدِ اَللَّهِ بْنِ عَمْرِوٍ رَضِيَ اَللَّهُ عَنْهُمَا قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ لَا صَامَ مَنْ صَامَ اَلْأَبَدَ } مُتَّفَقٌ عَلَيْهِ [1] .
’Abdullah Ibn 'Umar (RAA) narrated that The Messenger of Allah (ﷺ) said: “May he, who perpetually fasts (without a break) never fast." Agreed upon.
Arabic/English book reference: Book 5, Hadith 715