Is the death of a man who intended to commit suicide by poison and repented two days before his death considered suicide?

Whoever repents, Allah accepts his repentance, no matter how great his sins. This is indicated by the words of Allah Almighty: "Say, 'O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.'" And His saying: "Except for those who repent, believe and do righteous deeds. For them Allah will change their evil deeds into good ones. And Allah is Oft-Forgiving, Most Merciful." So, whoever repents from disbelief, Allah accepts his repentance, and even more so for lesser sins like killing a soul. We hope that Allah has forgiven this person and accepted his repentance.