Hadith 2274
´It was narrated from Abu Qilabah that Abu Umayyah Ad-Damri told him that:` he came to the Messenger of Allah from a journey and he was fasting. The Messenger of Allah said to him, "Won't you come and have meal for the breakfast?" He said: "I am fasting." The Messenger of Allah said: "Come and I will tell you about fasting. Allah, the mighty and sublime, has waived fasting and half of the prayer from the traveler."
Hadith 4813
´It was narrated from Ibn 'Abbas that:` the Prophet of Allah ruled that the Diyah for a Mukatab should be (equivalent) to the Diyah for a free man, proportionate to the amount he had paid off (toward buying his freedom).