Yahya bin Habib bin Arby يحيى بن حبيب بن عربي · The Book of Fasting

"The Messenger of Allah said: 'Fasting is a shield."' (Sahih

"Should I fast while traveling?" He said: "If you wish then fast, and if you wish then do not fast."

"It was said: 'O Messenger of Allah, so and so never broke his fast, even for one day for the rest of his life.' He said: 'He has neither fasted nor broken his fast."" 'Ata said: "someone who heard him told me that Ibn 'Umar (said) that the Prophet said: 'Whoever fasts every day of his life, then he has not fasted."