It was narrated from Abu Qilabah that a man said:

"I came to the Prophet to discuss something and he was eating breakfast. He said: 'Come and eat.' I said: 'I am fasting.' He said: 'Come and I will tell you about fasting. Allah has waived half of prayer and fasting from the traveler, and he has granted a concession to pregnant women and the sick."'

أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ خَالِدٍ الْحَذَّاءِ، عَنْ أَبِي قِلاَبَةَ، عَنْ رَجُلٍ، قَالَ أَتَيْتُ النَّبِيَّ ﷺ لِحَاجَةٍ فَإِذَا هُوَ يَتَغَدَّى قَالَ " هَلُمَّ إِلَى الْغَدَاءِ " . فَقُلْتُ إِنِّي صَائِمٌ . قَالَ " هَلُمَّ أُخْبِرْكَ عَنِ الصَّوْمِ إِنَّ اللَّهَ وَضَعَ عَنِ الْمُسَافِرِ نِصْفَ الصَّلاَةِ وَالصَّوْمَ وَرَخَّصَ لِلْحُبْلَى وَالْمُرْضِعِ " .