If you fast three days of the month, then fast the thirteenth, fourteenth and fifteenth
عن أبي ذر رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم : «إِذَا صُمْتَ مِنَ الشَّهْرِ ثَلاَثاً، فَصُمْ ثَلاَثَ عَشْرَةَ، وَأرْبَعَ عَشْرَةَ، وَخَمْسَ عَشْرَةَ». عن قتادة بن ملحان رضي الله عنه قال: كانَ رسولُ اللهِ صلى الله عليه وسلم يَأمُرُنَا بِصِيَامِ أيَّامِ البِيضِ: ثَلاثَ عَشْرَةَ، وَأرْبَعَ عَشْرَةَ، وَخَمْسَ عَشْرَةَ. عن ابن عباس رضي الله عنهما قال: كانَ رسولُ اللهِ صلى الله عليه وسلم لاَ يُفْطِرُ أيَّامَ البِيضِ في حَضَرٍ وَلاَ سَفَرٍ.
Abu Dharr (may Allah be pleased with him) reported that the Messenger of Allah (may Allah’s peace and blessings be upon him) said: "If you fast three days of the month, then fast the thirteenth, fourteenth and fifteenth." Qatādah ibn Milhān (may Allah be pleased with him) reported that the Messenger of Allah (may Allah’s peace and blessings be upon him) used to order us to fast the White Days: the thirteenth, fourteenth and fifteenth (of every lunar month)." Ibn ‘Abbās (may Allah be pleased with him) reported that the Messenger of Allah (may Allah’s peace and blessings be upon him) never broke his fast on the White Days, whether he was a resident or a traveler.”
Narrated by Ibn Majah · hadeethenc:10108
Grading: Good hadith (as published by the source; the grader is not named)
Explanation from the source
Topics: Fasting
Source: HadeethEnc.com, published by HadeethEnc.com. Version API snapshot retrieved 2026-10-11 (the source publishes no version number) (retrieved 2026-10-11). Published by HadeethEnc.com. Shown unmodified; not reviewed by a scholar.