Jarir bin 'Abdullah (May Allah be pleased with him) reported:
I pledged allegiance to the Prophet (ﷺ) to establish Salat, to pay the Zakat and to have the welfare of every Muslim at heart.[Al-Bukhari and Muslim]. (JA)
App reference (JA): Book 9, Hadith 223 (JA)
Arabic/English book reference (JA): Book 9, Hadith 1213 (JA)