What is the ruling regarding a girl who loves a young man who is not committed to prayer and smokes, and she wishes to reform him? Should she accept him as a husband if he proposes, or should she continue to advise and guide him?

It is not permissible for a Muslim woman to marry someone who does not pray until he repents and observes prayer, even if he is of good character, because his abandonment of prayer is a major crime. The hadith indicates that whoever is not pleased with his religion should not be married. The majority of scholars hold that one who completely abandons prayer out of laziness is a disbeliever, a disbelief that expels him from the fold of Islam. It should be noted that establishing a love relationship between a girl and a foreign man is not permissible for her.