Abu Dharr reported that the Prophet (SAW) said, "Shall I tell you the words that Allah loves the most?" I said: "Yes, tell me, O Messenger of Allah." He said: "The words dearest to Allah are

سُبْحَانَ اللّهِ وَ بِحَمْدِهِ 

- SubhanAllahi wa biHamdihi 


(Glory be to Allah and Praise Him) 

[Muslim and Tirmidhi]