صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب الفريضة فى السفرChapters on Prayers while Traveling
(379) بَابُ ذِكْرِ الدَّلِيلِ عَلَى أَنَّ اللَّهَ عَزَّ وَجَلَّ وَلَّى نَبِيَّهُ الْمُصْطَفَى صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تِبْيَانَ عَدَدِ الصَّلَاةِ فِي السَّفَرِ،379 Chapter: Evidence That Allah Entrusted His Prophet (peace be upon him) with Explaining the Number of Prayers While Traveling.
Hadith 948
قَالَ أَبُو بَكْرٍ : وَفِي خَبَرِ أَنَسِ بْنِ مَالِكٍ " صَلَّى النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الظُّهْرَ بِالْمَدِينَةِ أَرْبَعًا ، وَالْعَصْرَ بِذِي الْحُلَيْفَةِ رَكْعَتَيْنِ " دَالٌ عَلَى أَنَّ لِلآمِنِ غَيْرِ الْخَائِفِ مِنْ أَنْ يَفْتِنَهُ الْكُفَّارُ أَنْ يَقْصُرَ الصَّلاةَ .
Imam Abu Bakr, may Allah have mercy on him, says that this hadith of Sayyiduna Anas bin Malik, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, performed four rak'ahs of Zuhr prayer in Madinah Munawwarah and performed two rak'ahs of Asr prayer at the place of Dhul-Hulaifah. This is evidence that even in a state of peace and security, without fear of the mischief of the disbelievers, a person performing prayer (while traveling) can shorten the prayer.
