´It was narrated that Abu Hurairah said:` " I heard the Messenger of Allah say: 'The month of patience ( Ramadan) and three days of each month is fasting for a lifetime."' (Sahih).
Hadith Referenceسنن نسائي / كتاب الصيام / 2410
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده صحيح
´It was narrated that Abu Dharr said:` "The Messenger of Allah said: 'Whoever fasts for three days of each month, he has fasted for a whole lifetime.' Then he said: Allah has spoken the truth in His book: Whoever brings a good deed shall have ten times the like thereof to his credit.
Hadith Referenceسنن نسائي / كتاب الصيام / 2411
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:ضعيف، ضعيف، ترمذي (762) ابن ماجه (1708) انوار الصحيفه، صفحه نمبر 339
Hadith Takhrij«سنن الترمذی/الصوم54 (762)، سنن ابن ماجہ/الصوم29 (1708)، (تحفة الأشراف: 11967)، مسند احمد 5/145 (صحیح)»
´Abu 'Uthman reported from a man, that Abu Dharrr said:` "I heard the Messenger of Allah say: "Whoever fasts three days of each month has fasted the month in full' or 'will have (the reward of) fasting the month."' 'Asim was in doubt.
´It was narrated that Al-Hurr bin Sayyah said:` "I heard Ibn 'Umar say" "The Prophet used to fast three days of each month.
Hadith Referenceسنن نسائي / كتاب الصيام / 2415
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح
Hadith Takhrij«تفرد بہ النسائي، (تحفة الأشراف: 6685) ، مسند احمد 2/90 (صحیح) (سند میں حجاج بن ارطاة اور شریک قاضی ضعیف ہیں، لیکن آنے والی روایت سے تقویت پاکر یہ حدیث صحیح ہے)»