@Misss_sandraa Sending Solawat on the Prophet is the peak of Celebration.
ALLAH does not observe Solat nor fast, but HE compel all believers together with HIS Angels to join HIM in Praising and Celebrating HIS Beloved (Peace Be Unto Him).
@Misss_sandraa Let no one confuse you, the praise and celebration of the birth of Prophet Muhammad is not Sunnah but Fard. This is what ALLAH Himself and HIS Righteous Angels do always.
I owe no one explanations for saying this.