Sunan Abi Dawud 3216
سنن أبي داود#3216Sahihحَدَّثَنَا أَبُو صَالِحٍ، - يَعْنِي الأَنْطَاكِيَّ - أَخْبَرَنَا أَبُو إِسْحَاقَ، - يَعْنِي الْفَزَارِيَّ - عَنِ الثَّوْرِيِّ، عَنْ أَيُّوبَ، عَنْ حُمَيْدِ بْنِ هِلاَلٍ، بِإِسْنَادِهِ وَمَعْنَاهُ زَادَ فِيهِ " وَأَعْمِقُوا " .
The tradition mentioned above has also been transmitted by Humaid b. Hilal with a different chain of transmitters and to the same effect. This version adds:"And deepen (the graves)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih
In-book reference: 21:128