Mukhtasar Muslim

Narrated from Sayyiduna Uthman (bin Affan) (may Allah be pleased with him): He said that I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: Whoever performs ablution perfectly for prayer, then goes to the (mosque) for the obligatory prayer and prays with the people or in congregation or in the mosque, Allah Almighty will forgive his sins.