Chapter on the Reward of Suhoor
Man Lā Yaḥḍuruh al-Faqīh|Volume 2|Book 2|Chapter 22
وَ سَأَلَهُ أَبُو بَصِيرٍ: عَنِ اَلسَّحُورِ لِمَنْ أَرَادَ اَلصَّوْمَ أَ وَاجِبٌ هُوَ عَلَيْهِ فَقَالَ «لاَ بَأْسَ بِأَنْ لاَ يَتَسَحَّرَ إِنْ شَاءَ فَأَمَّا فِي شَهْرِ رَمَضَانَ فَإِنَّهُ أَفْضَلُ أَنْ يَتَسَحَّرَ أُحِبُّ أَنْ لاَ يَتْرُكَ فِي شَهْرِ رَمَضَانَ ».
Abu Basir asked Imam عليه السلام about suhoor for someone intending to fast, saying, "Is it obligatory?" Imam عليه السلام replied: "There is no harm if one does not have suhoor if they wish. However, in the Month of Ramadan, it is better to have suhoor. I prefer that it not be abandoned in the Month of Ramadan."
- Ṣaḥīḥ al-Faqīh, p. 99