Which is more obligatory: working in civil engineering to secure a livelihood, or dedicating oneself fully to calling to Allah, knowing that there are those who will cover expenses, and what are the repercussions of each choice for the future?

We advise you to combine working in your field with inviting people to Allah. Allah will bless your time and wealth because of the sincerity of your intention. Allah has praised men whose trade did not distract them from His remembrance and from establishing prayer, which indicates the virtue of combining both. Know that work and earning a livelihood with a good intention are considered acts of worship and obedience.