What is the proposed scientific methodology for acquiring the necessary Islamic sciences for someone who wishes to be a caller to God, taking into account his age and work circumstances (37 years old, works from 6 AM to 8 PM, married with two children, has two days off per week, and is able to read at work and use the internet at home)?

Calling to Allah and seeking knowledge are of great importance, and the questioner is thanked for his high ambition in this regard, for Islamic knowledge is the foundation of da'wah (calling to Islam). It is advisable to seek knowledge from a shaykh and to benefit from available resources. Da'wah has rules and etiquettes that must be observed. As for a private employee, he is not permitted to leave his work and engage in other matters except after completing the tasks assigned to him or during his free time.