But the Messenger and those who believed with him fought with their (9:88)

﴿لَٰكِنِ الرَّسُولُ وَالَّذِينَ آمَنُوا مَعَهُ جَاهَدُوا بِأَمْوَالِهِمْ وَأَنفُسِهِمْ ۚ وَأُولَٰئِكَ لَهُمُ الْخَيْرَاتُ ۖ وَأُولَٰئِكَ هُمُ الْمُفْلِحُونَ﴾
[ التوبة: 88]

9:88 But the Messenger and those who believed with him fought with their wealth and their lives. Those will have [all that is] good, and it is those who are the successful.

The Messenger and the believers with him did not remain behind from striving in Allah’s path, as these people did.
Instead, they strived in Allah’s path with their wealth and their lives.
Their reward from Allah is that they will receive worldly benefits, such as victory and gains of war, as well as benefits in the Afterlife, which includes entry into Paradise and successful attainment of their desires and salvation from what they fear.

But the Messenger (Muhammad SAW) and those who believed with him (in Islamic Monotheism) strove hard and fought with their wealth and their lives (in Allah's Cause). Such are they for whom are the good things, and it is they who will be successful.

phonetic Transliteration

Lakini alrrasoolu waallatheena amanoo maAAahu jahadoo biamwalihim waanfusihim waolaika lahumu alkhayratu waolaika humu almuflihoona

Abdullah Yusuf Ali - Translation

But the Messenger, and those who believe with him, strive and fight with their wealth and their persons: for them are (all) good things: and it is they who will prosper.

Safi-ur-Rahman al-Mubarakpuri

But the Messenger and those who believed with him strove hard and fought with their wealth and their lives. Such are they for whom are the good things, and it is they who will be successful.

Page 201 English transliteration