Cleanse oneself before praying; Say “Allahu Akbar” at the start of each prayer; Say “As-salamu 'alaikum” at the end of each prayer; Respectfully glorify Allah during prayers; Seek peace from Allah through prayers.

This hadith from Abu Sa'eed Al-Khudri explains the importance of prayer in Islam. It teaches us that the key to prayer is purification, which means that one must cleanse themselves before praying. Additionally, it states that when beginning a prayer one should say "Allahu Akbar" and when ending a prayer one should say "As-salamu 'alaikum". These words are important because they remind us of our purpose for praying - to glorify Allah and seek His peace. By following these instructions we can ensure that our prayers are accepted by Allah.