Samura b. Jundub reported: The Messenger of Allah (peace and blessings of Allah be upon him) said "The dearest phrases to Allah are four: Subhan Allah (Hallowed be Allah), Al-Hamdulillah (Praise be to Allah), La ilaha illa-Allah (There is no deity but Allah), Allahu Akbar (Allah is Greater). There is no harm for you in which of them begin with (while remembering Allah). And do not give these names to your servants: Yasar and Rabah and Najih and Aflah.

Samura b. Jundub reported: The Messenger of Allah (peace and blessings of Allah be upon him) said "The dearest phrases to Allah are four: Subhan Allah (Hallowed be Allah), Al-Hamdulillah (Praise be to Allah), La ilaha illa-Allah (There is no deity but Allah), Allahu Akbar (Allah is Greater). There is no harm for you in which of them begin with (while remembering Allah). And do not give these names to your servants: Yasar and Rabah and Najih and Aflah.

حَدَّثَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ بْنِ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا مَنْصُورٌ، عَنِ هِلاَلِ بْنِ يَسَافٍ، عَنْ رَبِيعِ بْنِ عُمَيْلَةَ، عَنْ سَمُرَةَ بْنِ جُنْدَبٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "أَحَبُّ الْكَلاَمِ إِلَى اللَّهِ أَرْبَعٌ سُبْحَانَ اللَّهِ وَالْحَمْدُ لِلَّهِ وَلاَ إِلَهَ إِلاَّ اللَّهُ وَاللَّهُ أَكْبَرُ‏.‏ لاَ يَضُرُّكَ بَأَيِّهِنَّ بَدَأْتَ.‏ وَلاَ تُسَمِّيَنَّ غُلاَمَكَ يَسَارًا وَلاَ رَبَاحًا وَلاَ نَجِيحًا وَلاَ أَفْلَحَ فَإِنَّكَ تَقُولُ أَثَمَّ هُوَ فَلاَ يَكُونُ فَيَقُولُ لاَ‏."‏‏ إِنَّمَا هُنَّ أَرْبَعٌ فَلاَ تَزِيدُنَّ عَلَىَّ ‏.‏