Is It Permissible To Delay Prayer Due To Potential Harm?
Yes, hardship will allow you to go to alternate forms of worship. You can combine Zuhar and Asr or can perform Tayammumm to offer the prayer. for combining of prayer, you can perform Asr prayer in the time of Zuhar or Zuhar prayer in the time of Asr. In the worst case scenario, if you are too busy with patients that you could not find any time for prayers, and if you leave your patients for a few minutes it might cause loss, then you can perform your prayer after your job is done. This concession is on the principle that you are helpless just like one is sleeping or like when the prophet was stuck due to shower of arrows from the Qurysh in the battle of Ahazab and he missed 4 prayers.