Prayer During Travel
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 59
وَقَالَ مُعَاوِيَةُ بْنُ عَمَّارٍ لِأَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: إِنَّ أَهْلَ مَكَّةَ يُتِمُّونَ اَلصَّلاَةَ بِعَرَفَاتٍ، قَالَ «وَيْلَهُمْ أَوْ وَيْحَهُمْ وَ أَيُّ سَفَرٍ أَشَدُّ مِنْهُ لاَ لاَ يُتَمُّ.
Muawiya ibn Ammar said to Imam Jafar ibn Muhammad Al-Sadiq عليه السلام: "The people of Mecca complete (perform in full) their prayers at Arafat." He عليه السلام replied: "Woe to them! (Or, Alas for them!) What journey is more significant than this? No, it should not be completed”.
- Ṣaḥīḥ al-Faqīh, p. 66