What is the expiation for breaking the fast in Ramadan due to travel?

This is a message we received, O Shaykh Abdul Aziz, from the Northern Borders. Its sender, Dhibyan Khudhr al-Jurayr al-Shamri, says: I traveled in Ramadan and broke my fast for one day. What is its expiation?
Answer: If you broke your fast while traveling, you only have to make up the fast, and there is no expiation. If you broke your fast while traveling for the sake of travel, there is no blame; in fact, it is a recommended practice. Allah the Mighty and Majestic says: [Surat al-Baqarah: 185]. So Allah, Blessed and Exalted is He, has made things easy and provided a dispensation for the traveler and the sick person to break their fast. If you traveled to any direction and broke your fast for one day or more, you have to make up the fast, and there is no expiation on you. However, if you delayed making up the fast until another Ramadan passed without making it up, then you have to make up the fast after that Ramadan, and feed one poor person for every day, a sa' (a dry measure of about 3 kg) of dates, rice, or other staple food of the country, as expiation for the delay. A group of the Companions (may Allah be pleased with them) issued a ruling to this effect, and it is the stronger of the scholars' opinions. That is, you make up the day you broke your fast, and you pay a ransom by feeding a poor person if the making up of the fast was delayed until after another Ramadan. And Allah, Blessed and Exalted is He, knows best. Yes.