Hazrat Ibn Abbas (may Allah be pleased with both of them) said: When you reach your destination, perform the full prayer.

It is narrated similarly through another chain.

Hasan says that when a traveler reaches a city, he should perform four rak‘ahs.

Hazrat Ibn Umar (may Allah be pleased with them both) narrates that when the Noble Prophet (peace and blessings be upon him) was traveling on the way, he would combine Maghrib and Isha prayers and offer them together.

Hazrat Ibn Abbas (may Allah be pleased with them both) narrates that I have performed eight rak‘ahs together and seven rak‘ahs together with the Noble Prophet (peace and blessings be upon him). The narrator says: I said, O Abu Sha‘tha! I think that you delayed the Zuhr prayer and performed the Asr prayer early, and delayed the Maghrib prayer and performed the Isha prayer early. He replied: I also think the same.

Hazrat Jabir narrates that the Holy Prophet (peace and blessings be upon him) combined the Zuhr and Asr prayers and the Maghrib and Isha prayers during the Battle of Tabuk.

Hazrat Mu'adh bin Jabal narrates that the Noble Prophet (peace and blessings be upon him) combined the Zuhr and Asr prayers, and the Maghrib and Isha prayers during the journey of the Battle of Tabuk.

Hazrat Ibn Abbas (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) combined the prayers of Zuhr and Asr, and Maghrib and Isha in Madinah without any fear or rain. Hazrat Ibn Abbas (may Allah be pleased with them both) was asked why the Messenger of Allah (peace and blessings be upon him) did this. He replied that it was for the ease of the Ummah.

Hazrat Abdullah bin Shaqiq Aqili reports that a man said to Hazrat Ibn Abbas (may Allah be pleased with them), "The time for prayer has come." He remained silent. The man said again, "The time for prayer has come." He remained silent. When the man said for the third time, "The time for prayer has come," Hazrat Ibn Abbas (may Allah be pleased with them) said, "Woe to you, are you teaching us about prayer? We used to combine two prayers while traveling with the Noble Prophet (peace and blessings be upon him)."

Hazrat Hafs bin Ubaidullah bin Anas says that we used to travel with Hazrat Anas bin Malik (may Allah be pleased with him). When the sun would decline and he was at a stop, he would not mount before offering the Asr prayer. And when he would set out and the time for Asr would come, he would offer the Asr prayer. If he departed from a stop before the sun declined, we would say to him that the time for prayer is about to come. He would say, "Keep moving." Then, when the time between the two prayers would come, he would dismount and offer both the Zuhr and Asr prayers. Then he would say, "I have seen the Messenger of Allah (peace and blessings be upon him) do the same."