The Peak of Eloquence · Hadith 1439 (#Passage #248)
Chapter 47 | Last will for Hasan and Husayn
وَاللهَ اللهَ فِي الصَّلَاةِ، فَإِنَّهَا عَمُودُ دِينِكُمْ.
(Fear) Allāh (and) keep Allāh in view in the matter of prayer, because it is the pillar of your religion.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).