﴿ لَٰكِنِ ٱلرَّسُولُ وَٱلَّذِينَ ءَامَنُوا۟ مَعَهُۥ جَٰهَدُوا۟ بِأَمْوَٰلِهِمْ وَأَنفُسِهِمْ ۚ وَأُو۟لَٰٓئِكَ لَهُمُ ٱلْخَيْرَٰتُ ۖ وَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ ﴾

“The Apostle, however, and all who share his faith strive hard [in God's cause] with, their possessions and their lives: and it is they whom the most excellent things await [in the life to come], and it is they, they who shall attain to a happy state!”

The expression: اُولُوا الطَّولِ (ulu 'at-caul: translated as ` the capable ones' ) (86) is not for particularization. Instead, it serves a purpose. It tells that there were others too, the ones not so capable. And the incapable ones had, at least, some obvious excuse to stay behind.