Sunan an-Nasa'i 3186
سنن النسائي#3186SahihIt was narrated that Khuraim bin Fatik said:"The Messenger of Allah (ﷺ) said: 'Whoever spends in the cause of Allah, it will be recorded for him seven hundred fold
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 25:102