The Sufficient (Vol 2) · Hadith 2250 (#Ḥadīth #3)
Chapter 16 | The Necessity to Honor an Old Muslim
3ـ وَبِهَذَا الإسْنَادِ قَالَ قَالَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وآلِه) مَنْ وَقَّرَ ذَا شَيْبَةٍ فِي الإسْلامِ آمَنَهُ الله عَزَّ وَجَلَّ مِنْ فَزَعِ يَوْمِ الْقِيَامَةِ.
3. Through the same chain of narrators it is narrated from Abu ‘Abdillah who has said the following: “The Messenger of Allah has said, ‘Whoever treats an old Muslim person with dignity, Allah, the Most Majestic, the Most Holy, will grant him protection against the horror of the Day of Judgment.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).