(5) باب الْجَمْعِ بَيْنَ الصَّلاَتَيْنِ
Narrated Mu'adh bin Jabal :
They (the Companions) proceeded on the expedition of Tabuk along with the Messenger of Allah (ﷺ). He combined the noon and afternoon prayers and the sunset and night prayers. One day he delayed the prayer and came out (of his dwelling) and combined the noon and the afternoon prayers. He then went it and then came out and combined the sunset and the night prayers.
Reference: Sunan Abi Dawud 1206
In-book reference: Book 4, Hadith 9
English translation: Book 4, Hadith 1202