1. Anas bin Malik said:

“The Messenger of Allah صلى الله عليه وسلم said, ‘Whoever wishes to have his provision expanded and his term of life prolonged should maintain ties of kinship.’” (Authentic)

2. Abu Hurayra said:

“The Messenger of Allah صلى الله عليه وسلم said: ‘Whoever is pleased to have his provision expanded and his term of life lengthened should maintain ties of kinship.’” (Authentic)

Commentary:

These ahadeeth prove that it is encouraged to seek legitimate means of expanding wealth, and that a person’s life span could be extended through connecting the ties of kinship. Nevertheless, this does not contradict the fact that life span is preordained; for as Eemaan (faith) rises and falls according to one’s deeds without contradicting preordainment, so does life span get shortened and prolonged according to its mean without contradicting preordainment.