Hadith on Ramadan: Making up missed fasts throughout the year

Abu Salamah reported: Aisha, may Allah be pleased with her, said, “I had to make up some fasts I missed during the month of Ramadan, but I was unable to do so until the month of Sha’ban as I was busy with the Messenger of Allah, peace and blessings be upon him.”

Source: Ṣaḥīḥ al-Bukhārī 1849, Ṣaḥīḥ Muslim 1146

Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim

عَنْ أَبِي سَلَمَةَ عن عائشة رَضِيَ اللَّهُ عَنْهَا قالت كَانَ يَكُونُ عَلَيَّ الصَّوْمُ مِنْ رَمَضَانَ فَمَا أَسْتَطِيعُ أَنْ أَقْضِيَهُ إِلَّا فِي شَعْبَانَ الشُّغْلُ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَوْ بِرَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ

1849 صحيح البخاري كتاب الصوم باب متى يقضى قضاء رمضان

1146 صحيح مسلم كتاب الصيام باب قضاء رمضان في شعبان