The Book on General Behaviour (Kitab Al-Adab)

Muslim :: Book 25 : Hadith 5329

Samura b. Jundub reprted: The dearest words to Allah are four: Subhan Allah (Hallowed be Allah), Al-Hamdulillah (Praise be to Allah), Wa la ilaha illa-Allah (There is no god but Allah), Allah-o-Akbar (God is the Greatest). There is no harm for you in which order you begin (them while remembering Allah), and he also said: Do not give these names to your servants, Yasar and Rabah and Nafi and Najth.

Source materials are from the University of Southern California MSA site
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