(3) باب الْبَيْعَةِ عَلَى إِقَامَةِ الصَّلاَةِ
Narrated Jarir bin `Abdullah:
I gave the pledge of allegiance to Allah's Messenger (ﷺ) for to offer prayers perfectly, to pay Zakat regularly, and to give good advice to every Muslim.
Reference: Sahih al-Bukhari 524
In-book reference: Book 9, Hadith 3
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 10, Hadith 502