(4) باب تَرْكِ التَّطَوُّعِ فِي السَّفَرِ
Wabarah bin Abdur-Rahman said:
"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.'"
Reference: Sunan an-Nasa'i 1457
In-book reference: Book 15, Hadith 25
English translation: Vol. 2, Book 15, Hadith 1458