Re: obedience to Rasulullah (s)
assalamu 'alaikum
This is a vast subject. But before that, some fantastic notices: when one becomes a Muslim, he read the kalima tayyiba.
When you become a Muslim, you accept HabibAllah salalaho 'alaihi wa salam as your teacher. You accept to follow the Last True Eternal Message from Allah that he salalaho 'alaihi wa aalihi wa salam has brought to you. In simple words, Islam has been given to us through the Best of All Creation, The Best of all Lights on Earth, the Perfect Creation, The Most Beautiful Person on Earth, The Man who walked and trees would cry to touch him, the ground would blossom, the air would fill with fragrance. This is who our beloved, our heart is. Ya RasulAllah salalaho 'alaihi wa salam.
The Qur'an Al-Kareem was sent into the blessed mubarak heart of Habeebina Syedina Muhammad salalaho 'alaihi wa salam by Syedina Jibril 'alaihissalam in the beginning in that blessed cave. And then he salalaho 'alaihi wa salam recited the word of Allah ta'ala.
The Love of Syedina HabibAllah is FARD. This is clearly stated in all the 4 madhabs of Sunni Islam. Without it, there is no Islam. You must love him more than everything created. Love has many categories and also has conditions. True love is one that has obedience in it. Without obedience, love would be, as scholars of Tasawwuf, but infact any learned God Fearing scholar would say "Naqis", incomplete.