Narrated Sa`id bin Al-Musaiyab:That when his grandfather, Hazn visited the Prophet (ﷺ) the Prophet (ﷺ) said (to him), "What is your name?" He said, "My name is Hazn." The Prophet (ﷺ) said, " But you are Sahl." He said, "I will not change my name with which my father named me." Ibn Al-Musaiyab added: So we have had roughness (in character) ever since
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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