What are the easy and simplified books recommended for learning the jurisprudence of purity (tahara) and prayer (salat) with their branches, in order to confront obsessive doubts (waswasah) and ignorance of daily matters, such as how to place the hands in prostration, bearing in mind that I am not a student of knowledge?

Every Muslim must learn the rulings of purity that validate their prayer, as well as the pillars, obligations, and nullifiers of prayer. As for how to prostrate with the palm, it is mustahabb (recommended) to place the entire palm on the ground, but placing part of it on the ground is sufficient, as the hadith did not restrict it. The questioner must ignore and turn away from waswasah (whispers/obsessive thoughts), attend scholarly gatherings and lessons to ask and benefit, and read appropriate jurisprudential books.