Narrated Ibn `Abbas:
The Prophet (ﷺ) never fasted a full month except the month of Ramadan, and he used to fast till one could say, "By Allah, he will never stop fasting," and he would abandon fasting till one would say, "By Allah, he will never fast."
Reference | : Sahih al-Bukhari 1971 |
In-book reference | : Book 30, Hadith 78 |
USC-MSA web (English) reference | : Vol. 3, Book 31, Hadith 192 |
(deprecated numbering scheme) |