Sunan Ibn Majah, Book 34, Hadith 26 (In-Book) ⓘ
It was narrated from Ibn 'Abbas that : the Messenger of Allah (saas) said: "May Allah have mercy on us and on our brother of 'Ad." (i.e., Prophet Hud alay-salaam).
حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ الْخَلاَّلُ، حَدَّثَنَا زَيْدُ بْنُ الْحُبَابِ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " يَرْحَمُنَا اللَّهُ وَأَخَا عَادٍ " .
also referenced under: Hadith 3852 (Reference) & Volume 5, Book 34, Hadith 3852 (DarusSalam)