Prayer During Travel
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 59
وَ سُئِلَ أَبُو عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: عَنْ صَلاَةِ اَلنَّافِلَةِ بِالنَّهَارِ فِي سَفَرٍ فَقَالَ «لَوْ صَلَحَتِ اَلنَّافِلَةُ فِي اَلسَّفَرِ تَمَّتِ اَلْفَرِيضَةُ.
Imam Jafar ibn Muhammad Al-Sadiq عليه السلام was asked about performing the supererogatory (nafilah) prayers during the day while traveling. Imam عليه السلام said: "If it were appropriate to perform the nafilah (supererogatory) prayers during travel, then the obligatory (fardh) prayers would have been completed (in full)”.
- Ṣaḥīḥ al-Faqīh