Sahih Muslim , Book 31, Hadith 6112 (USC-MSA) ⓘ
Abu Dharr reported Allah's Messenger as saying: Go to your people and say that the Messenger of Allah says: Ghifar (is a tribe) to whom Allah granted pardon, and Aslam (is the tribe) to whom Allah granted safety.
حَدَّثَنَا هَدَّابُ بْنُ خَالِدٍ، حَدَّثَنَا سُلَيْمَانُ بْنُ الْمُغِيرَةِ، حَدَّثَنَا حُمَيْدُ بْنُ هِلاَلٍ، عَنْ عَبْدِ، اللَّهِ بْنِ الصَّامِتِ قَالَ قَالَ أَبُو ذَرٍّ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " غِفَارُ غَفَرَ اللَّهُ لَهَا وَأَسْلَمُ سَالَمَهَا اللَّهُ " .
also referenced under: Book 44, Hadith 258 (In-Book) & Hadith 2514 (Reference)