Sahih al-Bukhari 4297
Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Narrated by Anas
Arabic
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ،. حَدَّثَنَا قَبِيصَةُ، حَدَّثَنَا سُفْيَانُ، عَنْ يَحْيَى بْنِ أَبِي إِسْحَاقَ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ أَقَمْنَا مَعَ النَّبِيِّ صلى الله عليه وسلم عَشْرًا نَقْصُرُ الصَّلاَةَ.
English translation
Narrated Anas:We stayed (in Mecca) for ten days along with the Prophet (ﷺ) and used to offer shortened prayers (i.e. journey prayers)
Reference: Sahih al-Bukhari 4297, Book of Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi). English translation by Dr. Muhammad Muhsin Khan.