عَنْ رُوَيْفِعِ بْنِ ثَابِتٍ الْأَنْصَارِيِّ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ مَنْ صَلَّى عَلَى مُحَمَّدٍ وَقَالَ اللَّهُمَّ أَنْزِلْهُ الْمَقْعَدَ الْمُقَرَّبَ عِنْدَكَ يَوْمَ الْقِيَامَةِ وَجَبَتْ لَهُ شَفَاعَتِي
It is narrated from Sayyiduna Ruwayfi’ bin Thabit Ansari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever sends blessings upon Muhammad (peace and blessings be upon him) and says: "O Allah! Grant him the nearest station to You on the Day of Resurrection," then my intercession will become obligatory for him.