Prayer During Travel
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 59
وَ رَوَى مُحَمَّدُ بْنُ مُسْلِمٍ عَنْ أَحَدِهِمَا عَلَيْهِمَا اَلسَّلاَمُ أَنَّهُ قَالَ: «لَيْسَ عَلَى اَلْمَلاَّحِينَ فِي سُفُنِهِمْ تَقْصِيرٌ وَ لاَ عَلَى اَلْمُكَارِي وَ اَلْجَمَّالِ.
Muhammad ibn Muslim narrated from one of the Imams عليه السلام that He said: "There is no shortening of the prayer for sailors on their ships, nor for the mule drivers (al-Mukari) and camel drivers (al-Jammal)."
- Ṣaḥīḥ al-Faqīh, p. 63