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
hakim:2496 – Ismāʿīl b. Muḥammad b. al-Faḍl from my father > Ibrāhīm b. Ḥamzah > al-Mughīrah b. ʿAbd al-Raḥman al-Makhzūmī > Ibn ʿAjlān > Abū al-Zinād > al-Aʿraj > Abū Hurayrah

[Machine] The Prophet ﷺ said, "One person is a devil, two people are two devils, and three people are a group (ride)." According to the condition of a believer.  

الحاكم:٢٤٩٦ – أَخْبَرَنِي إِسْمَاعِيلُ بْنُ مُحَمَّدِ بْنِ الْفَضْلِ ثنا جَدِّي ثنا إِبْرَاهِيمُ بْنُ حَمْزَةَ ثنا الْمُغِيرَةُ بْنُ عَبْدِ الرَّحْمَنِ الْمَخْزُومِيُّ ثنا ابْنُ عَجْلَانَ عَنْ أَبِي الزِّنَادِ عَنِ الْأَعْرَجِ عَنْ أَبِي هُرَيْرَةَ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «الْوَاحِدُ شَيْطَانٌ وَالِاثْنَانِ شَيْطَانَانِ وَالثَّلَاثَةُ رَكْبٌ» على شرط مسلم  

See similar narrations below:

Collected by Mālik, Suyūṭī
malik:54-36 – Mālik > ʿAbd al-Raḥman b. Ḥarmalah > ʿAmr b. Shuʿayb from his father from his father

Malik related to me from Abd ar-Rahman ibn Harmala from Amr ibn Shuayb from his father from his father that the Messenger of Allah ﷺ said, "One rider is a shaytan. Two riders are two shaytans, and three are a riding-party."  

مالك:٥٤-٣٦ – حَدَّثَنِي مَالِكٌ عَنْ عَبْدِ الرَّحْمَنِ بْنِ حَرْمَلَةَ عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الرَّاكِبُ شَيْطَانٌ وَالرَّاكِبَانِ شَيْطَانَانِ وَالثَّلاَثَةُ رَكْبٌ