ßÊÇÈ ÇáÕæã : Hadeeth No:1854 : Ibn 'Abbas: The Prophet 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."...

ßÊÇÈ ãæÇÞíÊ ÇáÕáÇÉ : Hadeeth No:557 : Ibn 'Abbas: Some people told me the same narration (as above). ...