قُلْتُ لِأَبِي الْحَسَنِ ع إِنَّا كُنَّا فِي الْبَيْدَاءِ فِي آخِرِ اللَّيْلِ فَتَوَضَّأْتُ وَ اسْتَكْتُ وَ أَنَا أَهُمُّ بِالصَّلَاةِ ثُمَّ كَأَنَّهُ دَخَلَ قَلْبِي شَيْءٌ فَهَلْ يُصَلَّى فِي الْبَيْدَاءِ فِي الْمَحْمِلِ فَقَالَ لَا تُصَلِّ فِي الْبَيْدَاءِ قُلْتُ وَ أَيْنَ حَدُّ الْبَيْدَاءِ فَقَالَ كَانَ أَبُو جَعْفَرٍ ع إِذَا بَلَغَ ذَاتَ الْجَيْشِ[3] جَدَّ فِي السَّيْرِ ثُمَّ لَا يُصَلِّي حَتَّى يَأْتِيَ مُعَر
“I once said to abu al-Hassan (a.s.), ‘We were in al-Bayda’ (name of a place) toward the end of the night. I took Wudu’, brushed my teeth and I intended to perform Salah (prayer), then it occurred to me. Is it permissible to perform Salah (prayer), in al-Bayda’ in the carriage? He (the Imam) said, ‘Do not perform Salah