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
suyuti:23188a –
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السيوطي:٢٣١٨٨a –

"مَنْ لَمْ يَلزَقْ أَنْفَهُ مَعَ جَبْهَتِهِ بالأَرْضِ إِذَا سَجَدَ لَمْ تَجُزْ صَلاتُهُ (*) ".  

[طب] الطبرانى في الكبير عن ابن عباس

See similar narrations below:

Collected by Ṭabarānī
tabarani:11917 – al-Ḥasan b. ʿAlī al-Maʿmarī > Ibn ʿUthmān b. Kathīr b. Dīnār al-Ḥimṣī Aẓunnuh Yaḥyá > Muḥammad b. Ḥimyar > al-Ḍaḥḥāk b. Ḥumrah > Manṣūr > ʿĀṣim al-Bajalī > ʿIkrimah > Ibn ʿAbbās

[Machine] The Messenger of Allah ﷺ said, "Whoever does not firmly place their nose with their forehead on the ground when they prostrate, their prayer is not valid."  

الطبراني:١١٩١٧ – حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْمَعْمَرِيُّ ثنا ابْنُ عُثْمَانَ بْنِ كَثِيرِ بْنِ دِينَارٍ الْحِمْصِيُّ أَظُنُّهُ يَحْيَى ثنا مُحَمَّدُ بْنُ حِمْيَرٍ عَنِ الضَّحَّاكِ بْنِ حُمْرَةَ عَنْ مَنْصُورٍ عَنْ عَاصِمٍ الْبَجَلِيِّ عَنْ عِكْرِمَةَ عَنِ ابْنِ عَبَّاسٍ

عَنْ رَسُولِ اللهِ ﷺ قَالَ «مَنْ لَمْ يُلْزِقْ أَنْفَهُ مَعَ جَبْهَتِهِ بِالْأَرْضِ إِذَا سَجَدَ لَمْ تَجُزْ صَلَاتُهُ»