Durood upon the Holy Prophet Muhammad s.a.

عَنْ عَبْدِ اللہِ بْنِ مَسْعُودٍ، أَنَّ رَسُولَ اللہِ صَلَّی اللہُ عَلَیْہِ وَسَلَّمَ قَالَ أَوْلَی النَّاسِ بِیْ یَوْمَ الْقِیَامَتِ أَکْثَرُھُمْ عَلَیَّ صَلَاۃً

Hazrat Abdullah^ra bin Mas‘ud narrates that the Holy Prophet^sa said, ‘‘On the Day of Judgement, the closest to me will be those who invoke Allah’s blessings upon me most frequently.’’

(Sunan al-Tirmidhi, Kitab al-Witri, Babu ma ja‘a fi Fadhl al-Salati ala al-Nabiyyi)