Narrated Abu Hurairah:The Messenger of Allah (ﷺ) visited his mother's grave and wept and cause those around him to weep. The Messenger of Allah (ﷺ) then said: I asked my Lord's permission to pray for forgiveness for her, but I was not allowed. I then asked His permission to visit her grave, and I was allowed. So visit graves, for they make one mindful of death
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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