If someone is unsure whether their prayer (salah) is being accepted, they can seek reassurance by focusing on their sincerity and striving to improve their worship. They should ensure their prayers are done properly, with attention and humility, and trust in Allah’s mercy. It’s important to avoid excessive doubts; instead, one should make sincere duas (supplications) and ask for forgiveness if mistakes were made. Doubts can also stem from the whispers of Shaytan, so maintaining strong faith and trust in Allah’s justice can help alleviate uncertainty