Imam At Tirmidhi said in his sunan, in the book of Zakah, the chapter regarding the virtue of charity: In more than one place in the Quran, Allah mentioned His
وَمَا خَلَقْتُ الْجِنَّ وَالْإِنسَ إِلَّا لِيَعْبُدُونِ And I (Allah) created not the jinns and humans except they should worship Me (Alone). (51:56) This honourable verse contains the reason for which
“Every command involving an act of worship in the Quran is a command to (observe) Tawheed. This is because worship without Tawheed is not accepted by Allah the Most High.