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.
bayhaqi:4141Abū Ṭāhir al-Faqīh > Abū Ṭāhir Muḥammad b. al-Ḥasan al-Muḥammadābādhī > Abū Qilābah > Yaḥyá b. Ḥammād > Abū ʿAwānah > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah

[Machine] The Messenger of Allah ﷺ said, "The majority of the punishment of the grave is due to urine." Abu Yahya narrated it from Mujahid, from Ibn Abbas, from the Prophet ﷺ . He then added, "So avoid urine."  

البيهقي:٤١٤١أنبأ أَبُو طَاهِرٍ الْفَقِيهُ أنبأ أَبُو طَاهِرٍ مُحَمَّدُ بْنُ الْحَسَنِ الْمُحَمَّدَآبَاذِيُّ ثنا أَبُو قِلَابَةَ ثنا يَحْيَى بْنُ حَمَّادٍ ثنا أَبُو عَوَانَةَ عَنِ الْأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ ؓ قَالَ

قَالَ رَسُولُ اللهِ ﷺ أَكْثَرُ عَذَابِ الْقَبْرِ مِنَ الْبَوْلِ وَرَوَاهُ أَبُو يَحْيَى عَنْ مُجَاهِدٍ عَنِ ابْنِ عَبَّاسٍ عَنِ النَّبِيِّ ﷺ فَزَادَ فِيهِ فَتَنَزَّهُوا مِنَ الْبَوْلِ