Hurting oneself is forbidden, even if it is through good deeds.

The Shaykh : There is no harm to yourself and no harm to others. Whatever you harm yourself with is forbidden for you, and whatever you harm others with is forbidden for you, even if this harm is through good deeds. Here is a point I hope you will pay attention to: even if the harm is through good deeds, of course, good deeds that are not obligatory but are truly good. "No harm to yourself, even through good deeds" is a strange statement, but it is as Allah the Exalted said: . No harm to yourself, even through good deeds. Where did we take this from? From many, many hadiths. He (peace and blessings be upon him) said in a well-known hadith regarding its cause: . What is the relevance of this hadith? The great good. What is this good? The story of the group of men who came to the Messenger (peace and blessings be upon him) but did not find him, so they asked his wives about his worship (peace and blessings be upon him), about his standing in prayer at night and his fasting during the day, and his intimacy with the women. They said: "The Messenger of Allah (peace and blessings be upon him) stands in prayer at night and sleeps, fasts and breaks the fast, and marries women." They said: "This is the Messenger of Allah, and Allah has forgiven him what has passed of his sin and what is to come." If they had known what they were aiming at, they would have committed disbelief, and they were the Companions of the Messenger, but they did not think about the consequence of this word, because it means: Why does the Messenger not stand in prayer all night? Why does the Messenger not fast all the time? Why does the Messenger not enjoy his women? Allah has forgiven him. They say in our region in the Levant: "He puts his foot in cold water and rests." This is said about the Messenger, the one about whom his Companions said: "The Messenger of Allah (peace and blessings be upon him) stood in prayer until his feet swelled, his feet cracked." They said this out of concern for him, saying: "O Messenger of Allah, Allah has forgiven you what has passed of your sin and what is to come." Meaning they were telling him: Your need is met, do not exhaust yourself. This is the goal we intend from our life here and from our obedience to our Lord and our following of the Sunnah of our Prophet, which is to attain the forgiveness of our Lord. So, our Lord has forgiven you what has passed of your sin and what is to come, why this exhaustion? He said: . Those men were heedless of this matter. They said: It is his right (peace and blessings be upon him) to marry women, and not to stand in prayer at night at all, and not to fast all the time, because he has achieved the purpose. This is a statement that touches the status of prophethood and messengership, if they had known. So they made a pact among themselves after they uttered this wrong word. They said: This is the Messenger of Allah, and Allah has forgiven him what has passed of his sin and what is to come. But as for me, one of them said about himself: "I will stand in prayer at night and not sleep." The second said: "I will fast all the time and not break the fast." The third said: "I will not marry women at all." Who says that fasting is evil, and prayer in the religion is evil, and not marrying women is evil, especially to devote oneself to the worship of Allah? Reason does not say it is evil. And here is the point: it is not permissible for a Muslim to stand in prayer at night and not sleep because he harms himself.