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
abudawud:3872 – Aḥmad b. Ḥanbal > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

If anyone drinks poison, the poison will be in his hand (on the Day of Judgement) and he will drink it in Hell-fire and he will live in it eternally.  

أبو داود:٣٨٧٢ – حَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ حَدَّثَنَا أَبُو مُعَاوِيَةَ حَدَّثَنَا الأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَسَا سُمًّا فَسُمُّهُ فِي يَدِهِ يَتَحَسَّاهُ فِي نَارِ جَهَنَّمَ خَالِدًا مُخَلَّدًا فِيهَا أَبَدًا  

See similar narrations below:

Collected by Ibn Mājah
ibnmajah:3460 – Abū Bakr b. Abū Shaybah > Wakīʿ > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

“Whoever drinks poison and kills himself, will be sipping it in the fire of Hell forever and ever.’”  

ابن ماجة:٣٤٦٠ – حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا وَكِيعٌ عَنِ الأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ شَرِبَ سُمًّا فَقَتَلَ نَفْسَهُ فَهُوَ يَتَحَسَّاهُ فِي نَارِ جَهَنَّمَ خَالِدًا مُخَلَّدًا فِيهَا أَبَدًا