The Testimony of Faith (Shahaada) This is the testimony that "none has the right to be worshipped but Allah, and that Muhammad is His slave and messenger". This testimony is the key with which one becomes a Muslim. The meaning of the first part of the testimony, 'none has the right to be worshipped but Allah', is:
Allah is the Creator of all that exists. Allah is the Proprietor of all that exists and the Disposer of all affairs. Allah is the One Who deserves to be worshipped alone. The meaning of the second part of the testimony, 'Muhammad is His slave and messenger' contains the following meanings: To obey the Prophet in what he ordered. To believe in everything he said. To refrain from what he prohibited and warned against. And that you do not worship Allah except by what he legislated. Abu Mas'ud 'Uqba ibn 'Amr al-Ansari al-Badri reported that the Messenger of Allah, (PBUH), said, "Anyone who shows the way to something good has the same reward as the person who does it." [Muslim] E.g. if you encourage someone to go for Salah, or pay Zakat and the person actually goes ahead and prays or pays Zakat, Allah will reward him for the good deeds and at the same time give you (the one that encouraged them to do good) an equal reward as he has given them- without decreasing what he gave them. So Encourage Other To Do Good And Refrain From Bad Deeds