Al-Kāfi - The Book of Prayer

Chapter: Performing Salah (Prayer) Inside Ka’bah, on its Top, al-Biya 4, Churches and Places where Performing Salah (prayer) Is Undesirable َاعَةٌ عَنْ أَحْ٠َّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنْ فَضَالَةَ عَنِ الْحُسَيْنِ بْنِ عُثْ٠ُسْكَانَ عَنْ خَالِدٍ عَنْ أَبِي إِسْ٠َاعِيلَ قَالَ قُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ الْسَّلا٠) الرَّجُلُ يُصَلِّي عَلَى أَبِي قُبَيْسٍ ٠ُسْتَقْبِلَ الْقِبْلَةِ فَقَالَ لاَ بَأْسَ.

He (the Imam) said, ‘There is no offense in it.”’ جهول - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/296))