Pray with sincerity and devotion

This hadith speaks of the devotion and sincerity of the Prophet Muhammad's prayer. It is said that when he prayed, a sound came from his chest like the rumbling of a mill due to weeping. This shows how deeply devoted he was to Allah in prayer and supplication. He was so sincere in his prayers that it moved him to tears. This hadith teaches us about the importance of sincerity in our prayers and supplications as well as devotion to Allah when we pray. It also reminds us that we should strive for this level of devotion in our own prayers so that we can reap its rewards both here on earth and in the hereafter.