Narrated Khuraim bin Fatik: That the Messenger of Allah (ﷺ) said: "Whoever spends a sum in the cause of Allah, it is recorded for him seven-hundred fold." [Abu 'Eisa said:] There are something on this topic from Abu Hurairah. This Hadith is Hasan, we only know of it from the narration of Ar-Rukain bin Ar-Rabi' (a narrator in the chain of this Hadith)
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“Read in the name of your Lord who created.” 96:1
“My Lord, increase me in knowledge.” 20:114
“So remember Me; I will remember you.” 2:152
“Indeed, with hardship comes ease.” 94:6