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:7052Abū ʿAlī al-Rūdhbārī > Muḥammad b. Bakr > Abū Dāwud > ʿUbaydullāh b. Muʿādh from my father > Shuʿbah > Abū Isḥāq > Awṣá al-Ḥārith > Yuṣallī ʿAlayh ʿAbdullāh b. Yazīd Faṣallá ʿAlayh Thum Adkhalah al-Qabr from Qibal Rijl al-Qabr > Hadhā from al-Sunnah Hadhā Isnād Ṣaḥīḥ And Qad

[Machine] This is from the Sunnah, so it became like the known fact, and we have narrated this statement from Ibn Umar and Anas ibn Malik.  

البيهقي:٧٠٥٢أَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنبأ مُحَمَّدُ بْنُ بَكْرٍ ثنا أَبُو دَاوُدَ ثنا عُبَيْدُ اللهِ بْنُ مُعَاذٍ ثنا أَبِي ثنا شُعْبَةُ عَنْ أَبِي إِسْحَاقَ قَالَ أَوْصَى الْحَارِثُ أَنْ يُصَلِّيَ عَلَيْهِ عَبْدُ اللهِ بْنُ يَزِيدَ فَصَلَّى عَلَيْهِ ثُمَّ أَدْخَلَهُ الْقَبْرَ مِنْ قِبَلِ رِجْلِ الْقَبْرِ وَقَالَ هَذَا مِنَ السُّنَّةِ هَذَا إِسْنَادٌ صَحِيحٌ وَقَدْ قَالَ

هَذَا مِنَ السُّنَّةِ فَصَارَ كَالْمُسْنَدِ وَقَدْ رُوِّينَا هَذَا الْقَوْلَ عَنِ ابْنِ عُمَرَ وَأَنَسِ بْنِ مَالِكٍ