It was narrated that Abu Hurairah said:
"The Messenger of Allah (ﷺ) said: 'I have been commanded to fight the people until they testify to La ilaha ill-allah (none has the right to be worshipped but Allah) and that I am the Messenger of Allah, and establish regular prayers and pay Zakat.'" (JA)
English reference (JA): Vol. 1, Book 1, Hadith 71 (JA)
Arabic reference (JA): Book 1, Hadith 75 (JA)