(6) باب الْجَمْعِ بَيْنَ الصَّلاَتَيْنِ فِي الْحَضَرِ
Mu'adh reported:
We set out with the Messenger of Allah (ﷺ) on the Tabuk expedition, and he observed the noon and afternoon prayers together and the sunset and 'Isha' prayers together.
Reference: Sahih Muslim 706 a
In-book reference: Book 6, Hadith 62
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1518