Keringanan shalat satu rakaat bagi orang ketika dalam keadaan takut
Imam Ahmad : 24776حَدَّثَنَا أَبُو أَحْمَدَ مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ قَالَ حَدَّثَنَا أُسَامَةُ بْنُ زَيْدٍ اللَّيْثِيُّ عَنْ الْقَاسِمِ بْنِ مُحَمَّدٍ عَنْ عَائِشَةَ قَالَتْ فُرِضَتْ الصَّلَاةُ رَكْعَتَيْنِ فَزَادَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي صَلَاةِ الْحَضَرِ وَتَرَكَ صَلَاةَ السَّفَرِ عَلَى نَحْوِهَا
Narrated to us [Abu Ahmad Muhammad bin Abdullah bin Azzubair] he said: Narrated to us [Usamah bin Zaid Al Laitsi] from [Al Qasim bin Muhammad] and [Aisyah] said: "The first prayer is obligatory with two rak'ahs, then the ProphetPeace be upon him'alaihi wa sallam adds a rak'ah to the prayers of those who stay, while those who travel remain as before (two rak'ahs).