Prayer on a Ship
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 62
وَ سَأَلَ مُحَمَّدُ بْنُ مُسْلِمٍ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: عَنْ رُكُوبِ اَلْبَحْرِ فِي هَيَجَانِهِ فَقَالَ «وَ لِمَ يُغَرِّرُ اَلرَّجُلُ بِدِينِهِ.
Muhammad ibn Muslim asked Imam Jafar ibn Muhammad Al-Sadiq عليه السلام about traveling by sea when it is turbulent. He عليه السلام replied: "Why would a person endanger his life and his religion?".
- Ṣaḥīḥ al-Faqīh, p. 67