Some people object that the death or accidents are from Allah and no one can supersede Allah’s will. Since the insurer guarantees against the death or accident, it is like going against Allah’s will. It is not true. No insurance in the world has ever claimed that it can save the insured from the death or the accident. The aim of every insurer, written very clearly in the agreement, is neither to guarantee nor determine the time and way of somebody’s life or death, nor does it intend to determine the future material luck of one’s dependents.
A life insurance policy also does not connote the idea that the participant is trying to protect his life from death against the will of Allah.
An insurance policy also does not mean that the insured person is determining his future’s financial capacity. In a policy, be it general or life, both the parties agree to work for a compensation or security against an unexpected tragedy. Such concept is, of course, in line with the Islamic principle whereby Islam encourages the people to strive hard in overcoming difficulties in their lives.

The Prophet Mohammad (ﷺ) says:
“Whosoever removes a worldly grief from a Momin, Allah will relieve him from one of the grieves in the hereafter. Whosoever alleviates a needy person, Allah will alleviate him in both the worlds and the hereafter.”

(More details on these objections are included in Sheikh Adil Salahi’s article in the chapter “Scholars in favour of life insurance“)