Ayesha reported,

I do not know of the Messenger of Allah ﷺ ever reciting the entire Quran in a single night, nor standing in prayer through an entire night until morning, nor fasting a complete month other than Ramadan.

Azami 4423

Sahih

عن عائشة، قالت

لا أعلم رسول الله ﷺ قرأ القرآن كله في ليلة واحدة، ولا قام ليلة حتى الصباح، ولا صام شهرا كاملا قط غير رمضان.

الأعظمي 4423صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Fasting
Chapter
Voluntary fasting and encouragement to do it
Section
Prophet ﷺ used to fast in Shaban and would connect his fast to the fast of Ramadan
Numbering
Jami al-Kamil 4423 (2nd edition)
Azami 4423