Ibn Khuzaimah added to it:

"How should we invoke blessings on you, whenever we invoke blessing on you in our prayers?"

وَزَادَ اِبْنُ خُزَيْمَةَ فِيهِ : { فَكَيْفَ نُصَلِّي عَلَيْكَ , إِذَا نَحْنُ صَلَّيْنَا عَلَيْكَ فِي صَلَاتِنَا } .‏ [1]‏