Hawzah News Agency – The merciful prophet of Islam (pbuh) says:

مَثُلَ ابنُ آدَمَ وإلى‏ جَنبِهِ تِسعٌ وتِسعونَ مَنِيَّةً، إن أخطَأتهُ المَنايا وَقَعَ في الهَرَمِ .

'Man is such that ninety nine deaths are decreed for him, and if the deaths were to miss him, he would fall into senility.'

Source: Tanbih al-Khawatir, v. 1, p. 272