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:21418a –
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السيوطي:٢١٤١٨a –

"مَنْ حَلَفَ بِغَيرِ اللهِ- ﷻ - فَلَيسَ مِن اللهِ".  

الديلمي عن أبي هريرة

See similar narrations below:

Collected by Aḥmad's Zuhd
ahmad-zuhd:178 – ʿAbdullāh from my father > ʿAbd al-Raḥman b. Mahdī > ʿAbd al-ʿAzīz b. Muslim > al-Rabīʿ b. Anas > Abū al-ʿĀliyah > Ubay b. Kaʿb

[Machine] "Whoever wakes up with his greatest concern being other than Allah, then he is not of Allah."  

الزهد لأحمد:١٧٨ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنَا أَبِي حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُسْلِمٍ عَنِ الرَّبِيعِ بْنِ أَنَسٍ عَنْ أَبِي الْعَالِيَةِ عَنْ أُبَيِّ بْنِ كَعْبٍ قَالَ

«مَنْ أَصْبَحَ وَأَكْبَرُ هَمِّهِ غَيْرُ اللَّهِ ﷻ فَلَيْسَ مِنَ اللَّهِ»