Is it haram to visualize having sex?

The question of whether visualizing sexual acts is considered haram involves varied interpretations across different Islamic traditions.

According to Sunni scholarship, Tafsir Ibn Kathir explains that indulging in lewd thoughts or actions is not permissible. The Qur'an states: And when they do some lewdness they say: We found our fathers doing it and Allah hath enjoined it on us. Say: Allah, verily, enjoineth not lewdness. Tell ye concerning Allah that which ye know not? 7:28. This verse emphasizes that Allah does not command indecency, suggesting that engaging in such thoughts may lead one away from righteous behavior.

In Shia scholarship, Al-Mizan also emphasizes the importance of guarding one's thoughts and actions against indecency. Although the specific topic of visualization may not be directly addressed in the available material, the broader principle remains that Muslims are encouraged to avoid any thoughts that may lead to sinful actions or distract them from their duties to Allah.

Thus, while there is no explicit mention of visualizing sexual acts in the sources, both traditions uphold the value of maintaining purity of thought and action. For specific rulings that apply to individual situations, it is advisable to consult a qualified local scholar.