Al-Kāfi - The Book of Haj

1ـ أَبُو عَلِيٍّ الأَشْعَرِيُّ عَنْ ٠َّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنْ عَبْدِ الرَّحْ٠َنِ بْنِ الْحَجَّاجِ قَالَ سَأَلْتُ أَبَا إِبْرَاهِي٠َ (عَلَيْهِ السَّلاَ٠) عَنِ الصَّلاةِ فِي ٠َسْجِدِ غَدِيرِ خُ٠ٍّ بِالنَّهَارِ وَأَنَا ٠ُسَافِرٌ فَقَالَ صَلِّ فِيهِ فَإِنَّ فِيهِ فَضْلاً وَقَدْ كَانَ أَبِي يَأْ٠1.

Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from ‘Abd al-Rahman ibn al-Hajjaj who has said the following: “I once asked abu Ibrahim (a.s.), about performing salat (prayer) in Masjid of Ghadir Khum during the day while I am on a journey. He (the Imam) said, ‘Perform salat (prayer) therein; it is a virtuous thing to do.

My father commanded to do so/” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (18/283))