Read all Ahadith in the book of destiny by sahih al muslim

Abdullah (b. Mas'ud) reported that Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) who is the most truthful (of the human beings) and his being truthful (is a fact) said: Verily your creation is on this wise. The constituents of one of you are collected for forty days in his mother's womb in the form of blood, after which it becomes a clot of blood in another period of forty days. Then it becomes a lump of flesh and forty days later Allah sends His angel to it with instructions concerning four things, so the angel writes down his livelihood, his death, his deeds, his fortune and misfortune. By Him, besides Whom there is no god, that one amongst you acts like the people deserving Paradise until between him and Paradise there remains but the distance of a cubit, when suddenly the writing of destiny overcomes him and he begins to act like the denizens of Hell and thus enters Hell, and another one acts in the way of the denizens of Hell, until there remains between him and Hell a distance of a cubit that the writing of destiny overcomes him and then he begins to act like the people of Paradise and enters Paradise.

This hadith has been reported on the authority of A'mash with the same chain of transmitters and in the hadith transmitted on the authority of Waki' (the words are): The creation of any one of you is like this that (semen) is collected in the womb of the mother for forty nights, and in the hadith transmitted on the authority of Shu'ba (the words are): Forty nights and forty days. And in the hadith transmitted on the authority of Jarir and 'Isa (the words are): Forty days.

Hudhaifa b. Usaid reported directly from Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) that he said: When the drop of (semen) remains in the womb for forty or fifty (days) or forty nights, the angel comes and says: My Lord, will he be good or evil? And both these things would be written. Then the angel says: My Lord, would he be male or female? And both these things are written. And his deeds and actions, his death, his livelihood; these are also recorded. Then his document of destiny is rolled and there is no addition to nor subtraction from it.

Abdullah b. Mas'ud reported: Evil one is he who is evil in the womb of his mother and the good one is he who takes a lesson from the (fate of) others. The narrator came to a person from amongst the Companions of Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) who was called Hudhaifa b. Usaid Ghifari and said: How can a person be an evil one without (committing an evil) deed? Thereupon the person said to him: You are surprised at this, whereas I have heard Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) as saying: When forty-two nights pass after the semen gets into the womb, Allah sends the angel and gives him shape. Then he creates his sense of hearing, sense of sight, his skin, his flesh, his bones, and then says: My Lord, would he be male or female? And your Lord decides as He desires and the angel then puts down that also and then says: My Lord, what about his age? And your Lord decides as He likes it and the angel puts it down. Then he says: My Lord, what about his livelihood? And then the Lord decides as He likes and the angel writes it down, and then the angel gets out with his scroll of destiny in his hand and nothing is added to it and nothing is subtracted from it.

This hadith has been narrated on the authority of 'Abdullah b. Mas'ud through another chain of transmitters.

Abu Tufail reported: I visited Abu Sariha Hudhaifa b. Usaid al-Ghifari who said: I listened with these two ears of mine Allahs Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) as saying: The semen stays in the womb for forty nights, then the angel, gives it a shape. Zubair said: I think that he said: One who fashions that and decides whether he would be male or female. Then he (the angel) says: Would his limbs be full or imperfect? And then the Lord makes thein full and perfect or otherwise as He desires. Then he says: My Lord, what about his livelihood, and his death and what about his disposition? And then the Lord decides about his misfortune and fortune.

Hadhaifa b. Usaid Ghifari, a Companion of Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ), reported it directly from Allah's Messenger (may peace upon him). as he said: There is an angel who looks after the womb when Allah decides to create any- thing after more than forty nights are over; the rest of the hadith is the same.

Anas b. Malik reported directly from Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) that he said: Allah, the Exlated and Glorious, has appointed an angel as the caretaker of the womb, and he would say: My Lord, it is now a drop of semen; my Lord, It is now a clot of blood; my Lord, it has now become a lump of flesh, and when Allah decides to give it a final shape, the angel says: My Lord, would it be male or female or would he be an evil or a good person? What about his livelihood and his age? And it is all written as he is in the womb of his mother.

Ali reported: We were in a funeral in the graveyard of Gharqad when Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌ ) came to us and we sat around him. He had a stick with him. He lowered his head and began to scratch the earth with his stick, and then said: There is not one amongst you whom a seat in Paradise or Hell has not been allotted and about whom it has not been written down whether he would be an evil person or a blessed person. A person said: Allah's Messenger, should we not then depend upon our destiny and abandon our deeds? Thereupon he said: Acts of everyone will be facilitated in that which has been created for him so that whoever belongs to the company of the blessed will have good works made easier for him and whoever belongs to the unfortunate ones will have evil acts made easier for him. He then recited this verse (from the Qur'an): Then, who gives to the needy and guards against evil and accepts the excellent (the truth of Islam and the path of righteousness it prescribes), We shall make easy for him the easy end and who is miserly and considers himself above need, We shall make easy for him the difficult end (xcii. 5-10).

This hadith has been narrated on the authority of Mansur with the same chain of transmitters but with a slight variation of wording.