(12) باب صَلاَةِ الظُّهْرِ فِي السَّفَرِ .
It was narrated that Al-Hakam bin 'Utaibah said:
"I heard Abu Juhaifah say: 'The Messenger of Allah (ﷺ) set off at midday, during the time of intense heat' - (One of the narrators) Ibn Al-Muthanna said, to Al-Batha' - and he performed Wudu', and prayed Zuhr, two Rak'ahs, and 'Asr, two Rak'ahs, with a short spear ('Anzah) in front of him.
Reference: Sunan an-Nasa'i 470
In-book reference: Book 5, Hadith 23
English translation: Vol. 1, Book 5, Hadith 471