Express your faith in God through words such as "Allah is Greater" ("Allahu akbar"), "Glory be to Allah" ("Subhana’llah"), "Praise be to Allah" ("Alhamdulillahi") and "There is no god but Allah and there is no power and no strength except by Him." ("La ilaha illa’llah wa la hawla wa la quwwata illa bi’llah").

This hadith emphasizes the importance of expressing one's devotion to Allah through words and phrases. It is said that a slave's abiding good deeds are saying 'Allah is greater' ('Allahu akbar' - الله أكبر ), 'Glory be to Allah' ('Subahana'llah' - سبحان الله ), 'Praise be to Allah' ('al-hamdu lillah'- الحمد لله ) and 'There is no god but Allah and there is no power and no strength except by Allah.' ('La ilaha illa'llah wa la hawla wa la quwwata illa bi'llah'- لا إِلَٰهَ إِلَّا ٱللَّهُ وَحْدَهُۥ وَشْرِ كِيْسِ). These phrases are used as a way of showing one's love for God and His greatness. They can also be used as a reminder for oneself that all power comes from God alone. This hadith teaches us that we should always remember our faith in God through these words, even if we are slaves or not.