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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:3775 – Abū Saʿīd Sharīk b. ʿAbd al-Malik b. al-Ḥasan al-Mihrajānī Bihā > Abū Sahl Bishr b. Aḥmad > Dāwud b. al-Ḥusayn al-Bayhaqī > Qutaybah b. Saʿīd > al-Layth > Nāfiʿ > Ibn ʿUmar

[Machine] He said, "A man should not prostrate except while he is in a state of purity."  

البيهقي:٣٧٧٥ – أَخْبَرَنَا أَبُو سَعِيدٍ شَرِيكُ بْنُ عَبْدِ الْمَلِكِ بْنِ الْحَسَنِ الْمِهْرَجَانِيُّ بِهَا ثنا أَبُو سَهْلٍ بِشْرُ بْنُ أَحْمَدَ ثنا دَاوُدُ بْنُ الْحُسَيْنِ الْبَيْهَقِيُّ ثنا قُتَيْبَةُ بْنُ سَعِيدٍ ثنا اللَّيْثُ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّهُ قَالَ لَا يَسْجُدُ الرَّجُلُ إِلَّا وَهُوَ طَاهِرٌ