Abdullah bin Amr bin As reported,
The Messenger of Allah ﷺ said to him, "Fast one day and break your fast the next. That is the fasting of Dawud, and it is the most balanced form of fasting. There is none better than that."
Azami 4465
Sahihعن عبد الله بن عمرو بن العاص، قال
قال له رسول الله ﷺ: صم يوما وأفطر يوما، وذلك صيام داود. وهو أعدل الصيام لا أفضل من ذلك.
الأعظمي 4465صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Fasting
Chapter
Voluntary fasting and encouragement to do it
Section
Most virtuous fasting is the fasting of Dawud 
Numbering
Jami al-Kamil 4465 (2nd edition)
Details
Collection
Jami al-Kamil
Book
Fasting
Chapter
Voluntary fasting and encouragement to do it
Section
Most virtuous fasting is the fasting of Dawud
Numbering
Jami al-Kamil 4465 (2nd edition)
Ayat
No annotations are available.
Reference
Commentary
Zia-ur-Rahman Azami
Bukhari narrated it in the chapters on the prophets (3418), and Muslim in the book of fasting (1159: 181), both from the hadith of Ibn Shihab, who said, Saeed bin Musayab and Abu Salama bin Abdul-Rahman informed me that Abdullah bin Amr said (then he mentioned it).