Hadith 4:683
9549. Abu al-Ahwas narrated to us, from Abu Ishaq, from Abdullah ibn Shaddad and Abu Maysarah, who said: A man came to the Prophet, may Allah bless him and grant him peace, and said: "O Messenger of Allah, a man who fasted forever?" He said: "He has neither fasted nor broken his fast."
حدثنا أبو الأحوص عن أبي إسحاق عن عبد الله بن شداد وأبي ميسرة قال جاء رجل إلى النبي صلى الله عليه وسلم فقال يا رسول الله رجل صام الأبد قال لا صام ولا أفطر