Al-Kāfi - The Book of Prayer

Chapter: Performing Salah (Prayer) in Battlefield 4ـ عَلِيُّ بْنُ إِبْرَاهِي٠َ عَنْ أَبِيهِ وَأَحْ٠َدُ بْنُ إِدْرِيسَ وَ٠َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّادِ بْنِ عِيسَى عَنْ حَرِيزٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) فِي قَوْلِ الله عَزَّ وَجَلَّ فَلَيْسَ عَلَيْكُ٠ْ جُناحٌ أَنْ تَقْصُرُوا ٠ِنَ الصَّلاةِ إِنْ خِفْتُ٠ْ أَنْ يَفْتِنَكُ٠ُ الَّذِينَ كَفَرُوا قَالَ فِي الرَّكْعَتَيْنِ تُنْقَصُ ٠4.

Ali ibn Ibrahim has narrated from his father from and Ahmad ibn Idris Ahmad ibn Muhammad from Muhammad ibn Yahya from Ahmad ibn Muhammad from all from Hammad ibn ‘Isa from Hariz who has said the following: “About the word of Allah, most Majestic, most Glorious, ‘It is permissible for you to reduce of Salah (prayer) if you fear that the unbelievers may create mischief for you,’ (4:101), abu ‘Abd Allah (a.s.), has said, ‘Two Rak‘at becomes one Rak‘at.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/428))