What does the Muslim say when he leaves the mosque?

بِسْمِ اللهِ، وَالصَّلَاةُ وَالسَّلَامُ عَلَى رَسُولِ اللهِ، اللهُمَّ افْتَحْ لِي أَبْوَابَ فَضْلِكَ

In the Name of Allah, and prayers and peace be upon the Messenger of Allah. O Allah, open the gates of Your favor for me.