کَما قالَ صلّی اللّه علیه و آله و سلّم: لی أسْماءٌ؛ أنَا مُحمّدٌ و أنَا أحمَدُ وَ أَنا الماحی الّذی یمحُوا اللّه بِی الکُفرَ وَ أَنَا الْحاشِرُ الّذی یحشَرُ النّاسُ عَلی قَدَمی و أَنَا الْعاقِبُ.

As prophet (pbu) said :I have names ; I'm Muhammad & I'm Ahmad & I'm 'Almahi' that Allah erases with me & i'm 'Hasher' that people resurect on my footstep & I'm 'Al'Aqeb' n)

1-Muhammad driven from name of Allah as praised one

2-Ahmad: more praised ,more glorified

3-'Mahi':he is the eraser of darkness with light

4-'Hasher': who is resurect first of all People

5-'Al'Aqeb' : he is last perophet

 

His name in skies is Ahmad & on earth is Muhammad

http://payambar.ommolketab.ir/اسامي-و-القاب-پيامبر-از-نگاه-قرآن-و-احاد/