We bear witness five times a day that he is the Messenger of Allah, we send peace upon him during our prayers, we open our gatherings with his mention after the mention of Allah azza wa jal and we ask Allah to bless him before we make a duaa. All of these acts show that we bear witness that he sal Allahu alayhi wa sallam delivered the message. Bearing witness that he delivered the message necessitates his love, his obedience and sending salah when he is mentioned, sal Allahu alayhi wa sallam.