Sa'd bin Abi Waqqas narrated that : Allah's Messenger said: "Whoever says, when he hears the Mu'adh-dhin: (Wa Ana Ashadu An La Ilaha Illallah, Wahdahu La Sharika Lahu, Wa Anna Muhammadan Abduhu Wa Rasuluhu, Radittu Billahi Rabban Wa Bil-Islam Dinan, Wa Bi Muhammadin Rasulan) 'I too testify that none has the right to be worshiped but Allah, Alone without partners, and that Muhammad is His slave and Messenger, I am pleased with Allah as my Lord, with Islam as my religion and Muhammad as a Messenger'. - Allah will pardon his sins for him".
The lesson here is clear - by having faith in Allah and His teachings, we can be sure that He will always be there to forgive us when needed. We should never forget this powerful truth when faced with difficult times or moments of doubt or despair; instead, let us remember the power of faith in forgiveness so that we may find solace even during the darkest hours.