Fear of wild beasts and natural fear does not contradict the oneness of Allah, except if it prevents one from fulfilling an obligation.

If someone were to ask: Is it permissible, or does it contradict the oneness of Allah, for a person to fear a wild beast or an enemy? No, this does not contradict the oneness of Allah. This is why it happened to the messengers: when the guests came to Ibrahim and did not eat, what happened? And Musa (peace be upon him), when the magicians threw down their ropes and staffs, what happened? Likewise, natural fear is what nature dictates. If we were to tell a person that if he fears anyone other than Allah with a natural fear, he would be one who associates partners with Allah, then saying that would be imposing what is beyond human capacity, because a person's fear is a natural, instinctive fear; every person fears what he dreads harm from. If someone were to ask: If this fear prevents him from an obligation incumbent upon him, is he forbidden from it or not? We say: Yes, he is forbidden from it, because the person is able to perform the obligation unless the Shari'ah grants him pardon in that situation. If the Shari'ah grants him pardon in that situation, there is no blame on him for this fear. Allah the Exalted said: But if there is a dispensation in the Shari'ah for you to go against what Allah has commanded in this situation, there is nothing wrong with it. For this reason, if a person wants to pray the obligatory prayer and there is a short wall around him, and he fears that if he stands up it will become apparent to the enemy, should he pray sitting? Yes, he prays sitting, and this is because Allah the Exalted has pardoned him. Allah the Exalted said: And if the enemy is more than twice the number of the Muslims, are they obligated to confront them, or is it permissible for them to flee? It is permissible for them to flee. So the important point is that a person is not blamed for natural fear unless it entails leaving what Allah has made obligatory. If it does not entail that, he is not blamed for it.