"Ibn 'Umar did not offer more than two rak'ahs when traveling, and he did not offer any prayer before or after that. It was said to him: 'What is this?' He said: 'This is what I saw the Messenger of Allah (ﷺ) doing.'"
Sunan an-Nasa'i Book 15, Hadith 25
← Previous Hadith She performed Umrah with the Messenger of Allah (ﷺ), traveling from Al-Madinah to Makkah. Then, when she came to Makkah, she said: "O Messenger of Allah (ﷺ), may my father and mother be ransomed for you, you shortened you prayers and I offered them in full, you did not fast and I fasted. He said: 'Well done, O 'Aishah!' and he did not criticize me."

Sunan an-Nasa'i Book 15, Hadith 24 Next Hadith → "My father told me: 'I was with Ibn Umar on a journey, and he prayed Zuhr and 'Asr with two rak'ahs each, then he went and sat on his carpet. He saw some people offering voluntary prayers and said: What are these people doing? I said: They are offering voluntary prayers. He said: If I had wanted to pray before and after (the obligatory prayer) I would have offered it in full. I accompanied the Messenger of Allah (ﷺ) and he did not pray more than two rak'ahs when traveling, and Abu Bakr (did likewise) until he died, as did 'Umar and 'Uthman, may Allah (SWT) be pleased with them all."

Sunan an-Nasa'i Book 15, Hadith 26