'Amr said: "I spoke to the Prophet and he said: 'Fast one day out of ten and you will have the reward of the other nine.' I said: 'I am able to do more than that.' He said: 'Fast one day out of eight and you will have the reward of the other eight.' I said: 'I am able to do more than that.' He said: 'Fast one day out of eight and you will have the reward of the other seven.' I said: 'I am able to do more than that.' 'Fast one day and not the next."'
Reported by An-Nasa’i (No. 2395) and Ahmad (No. 6790).
‘Abdullāh ibn ‘Amr ibn al-‘Ās (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) was told that I had said: "By Allah, I will fast every day and pray every night for as long as I live." The Messenger (may Allah's peace and blessings be upon…
"You fast continuously and stand in prayer at night?" I said: Yes. He said: "If you do that, your eyes will become weak, and your soul will become weary. No fasting counts for the one who fasts continuously. Fasting three days is like fasting the entire year". I said: Indeed, I am capable of more…