Ja'far bin Iyas · The Book of Fasting

"Allah has waived meaning half of the prayer and fasting for the traveler, and from pregnant women and the sick. "(Hanas)

"Tell it to us." The old man said: "My paternal uncle told me that he went to the Prophet, concerning some camels of his, while he was eating. He said: 'Come and eat.' I said: 'I am fasting.' He said: 'Allah, the mighty and sublime, has waived half of the prayer and fasting for the traveler, the pregnant woman and the sick."'

"Abu Qilabah narrated this Hadith to us, then he said: 'Do you want to meet the one who narrated this Hadith?' He directed me to him and I met him and he said: 'A relative of mine who was called to the Messenger of Allah concerning some camels of mine that had been taken away. When I saw him he was eating, and he called me to eat with him, but I said: 'I saw him he was eating, and…

"There is no fast except for one who intends to fast before dawn." (Daif)