Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:9765[Chain 1] Abū Muḥammad b. Yūsuf > Abū Muḥammad Daʿlaj b. Aḥmad > Muḥammad b. Ghālib > Abū Ḥudhayfah [Chain 2] Abū al-Ḥasan b. ʿAbdān > Sulaymān b. Aḥmad b. Ayyūb al-Lakhmī > Aḥmad b. Dāwud al-Makkī > Muḥammad b. Kathīr > Sufyān > al-Muthanná b. al-Ṣabbāḥ > ʿAmr b. Shuʿayb from his father

[Machine] From his grandfather, I saw the Messenger of Allah ﷺ pressing his face and chest against the prayer mat.  

البيهقي:٩٧٦٥أَخْبَرَنَا أَبُو مُحَمَّدِ بْنُ يُوسُفَ أنبأ أَبُو مُحَمَّدٍ دَعْلَجُ بْنُ أَحْمَدَ أنبأ مُحَمَّدُ بْنُ غَالِبٍ ثنا أَبُو حُذَيْفَةَ ح وَأَخْبَرَنَا أَبُو الْحَسَنِ بْنُ عَبْدَانَ أنبأ سُلَيْمَانُ بْنُ أَحْمَدَ بْنِ أَيُّوبَ اللَّخْمِيُّ ثنا أَحْمَدُ بْنُ دَاوُدَ الْمَكِّيُّ ثنا مُحَمَّدُ بْنُ كَثِيرٍ قَالَا ثنا سُفْيَانُ عَنِ الْمُثَنَّى بْنِ الصَّبَّاحِ عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ

عَنْ جَدِّهِ رَأَيْتُ رَسُولَ اللهِ ﷺ يُلْزِقُ وَجْهَهُ وَصَدْرَهُ بِالْمُلْتَزَمِ