Man Lā Yaḥḍuruh al-Faqīh

Hadith 859
travel-prayer
860 - وَقَالَ رَجُلٌ لِلصَّادِقِ عَلَيْهِ اَلسَّلاَمُ: إِنِّي أَكُونُ فِي اَلسَّفَرِ وَ لاَ أَهْتَدِي إِلَى اَلْقِبْلَةِ بِاللَّيْلِ فَقَالَ «أَ تَعْرِفُ اَلْكَوْكَبَ اَلَّذِي يُقَالُ لَهُ اَلْجَدْيَ» قُلْتُ نَعَمْ قَالَ «فَاجْعَلْهُ عَلَى يَمِينِكَ وَ إِذَا كُنْتَ عَلَى طَرِيقِ اَلْحَجِّ فَاجْعَلْهُ بَيْنَ كَتِفَيْكَ.
Hadith.860 - A man said to Imam Al-Sadiq (as): "I am sometimes traveling and cannot determine the Qiblah at night." The Imam asked: "Do you know the star that is called 'al-Jady' (the North Star)?" The man replied: "Yes." The Imam said: "Place it to your right, and if you are on the pilgrimage route, place it between your shoulders”.
Source: Shaykh Muḥammad b. ʿAlī al-Ṣaduq