“prayer has been decreed upon the believers a decree of specified times” [4:103]
“Indeed, the patient will be given their reward without account”[39:10]
“When a slave falls ill or travels, then he will get reward similar to that he gets for good deeds practiced at home when in good health” [Bukhari].
“No fatigue, nor disease, nor sorrow, nor sadness, nor hurt, nor distress befalls a Muslim, even if it were the prick he receives from a thorn, but that Allah expiates some of his sins for that” [Bukhari].
“[Adhere to it], turning in repentance to Him, and fear Him and establish prayer and do not be of those who associate others with Allah.” (Qur’an 30:31)