Narrated Amr bin 'Abasah: That the Messenger of Allah (ﷺ) said: "Whoever develops some gray hair in the cause of Allah, it shall be a light for him in the Day of Judgement. [Abu 'Eisa said:] This Hadith is Hasan Sahih Gharib. As for Haiwah bin Shuraih, (the remainder of his name is) Ibn Yazid Al-Himsi
Opening the collection...
“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