I wonder what Islam, more specifically the Quran or one of the many hadeeth have to say when it comes to life-threatening diseases. Many muslim people think they have to suffer the illness they're battling right now whereas they are good treatments that help save their lives.
My question now is: Is that one obligated to use that treatment to save their own life or does that person needs to suffer from that illness and potentially die? Isn't that considered suicide?
L.S.:
Please give me supporting evidence with source references. Thank you