Shortening the Prayers (At-Taqseer)
18/14. Chapter:
Should the Adhan and Iqama be pronounced when the Maghrib and Isha prayers are offered together
Sahih Bukhari
حَدَّثَنَا إِسْحَاقُ، حَدَّثَنَا عَبْدُ الصَّمَدِ، حَدَّثَنَا حَرْبٌ، حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنِي حَفْصُ بْنُ عُبَيْدِ اللَّهِ بْنِ أَنَسٍ، أَنَّ أَنَسًا ـ رضى الله عنه ـ حَدَّثَهُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَجْمَعُ بَيْنَ هَاتَيْنِ الصَّلاَتَيْنِ فِي السَّفَرِ. يَعْنِي الْمَغْرِبَ وَالْعِشَاءَ.
Narrated Anas bin Malik: Whenever the Prophet (ﷺ) started a journey before noon, he used to delay the Zuhr prayer till the time of `Asr and then offer them together; and if the sun declined (at noon) he used to offer the Zuhr prayer and then ride (for the journey).
Reference : Sahih al-Bukhari 1110In-book reference : Book 18, Hadith 30USC-MSA web (English) reference : Vol. 2, Book 20, Hadith 212