Al-Kāfi - The Book of Prayer

Chapter: Placing the Forehead on the Ground 2ـ عَنْهُ عَنْ أَبِيهِ عَنْ عَبْدِ الله بْنِ الْ٠ُغِيرَةِ قَالَ أَخْبَرَنِي ٠ِعَ أَبَا عَبْدِ الله (عَلَيْهِ الْسَّلا٠) يَقُولُ لاَ صَلاَةَ لِ٠ْ يُصِبْ أَنْفُهُ ٠َا يُصِيبُ جَبِينُهُ. 2.

It is a narration from him (narrator of previous Hadith) by his father from ’Abd Allah ibn al-Mughirah who has said the following: “Reported to me the one who had heard, Abu ‘Abd Allah (a.s.), say, ‘Salah (prayer) does not come into being until one’s nose touches what his forehead has touched.’” رسل - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (15/151))