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.
ahmad:18779al-Faḍl b. Dukayn > Sharīk > Abū Jaʿfar al-Farrāʾ > Abū Umayyah al-Fazārī

[Machine] I saw the Messenger of Allah ﷺ performing the act of tahajjud prayer, and Abu Nuaim did not mention it even once. Abu Jafar also did not mention it.  

أحمد:١٨٧٧٩حَدَّثَنَا الْفَضْلُ بْنُ دُكَيْنٍ حَدَّثَنَا شَرِيكٌ عَنْ أَبِي جَعْفَرٍ الْفَرَّاءِ قَالَ سَمِعْتُ أَبَا أُمَيَّةَ الْفَزَارِيَّ قَالَ

رَأَيْتُ رَسُولَ اللهِ ﷺ يَحْتَجِمُ وَلَمْ يَقُلْ أَبُو نُعَيْمٍ مَرَّةً الْفَرَّاءَ قَالَ أَبُو جَعْفَرٍ وَلَمْ يَقُلِ الْفَرَّاءَ